ich habe eine ziemlich große und verschachtelte Tabelle und habe es noch nicht geschafft, sie richtig zu formatieren. So sieht sie im Moment aus:
\documentclass[hidelinks, 12pt, oneside, headinclude=true]{scrreprt}
\usepackage{array}
\usepackage{tabularx}
\newcolumntype{Z}{>{\centering\arraybackslash}X} % centered column with automatic width
\newcolumntype{q}[1]{>{\raggedright\arraybackslash}p{#1}} % left-aligned column with fixed width
\newcolumntype{n}[1]{>{\raggedright\arraybackslash}m{#1}} % left-aligned column with fixed width, vertically centered
\renewcommand\tabularxcolumn[1]{m{#1}}
\newcommand\T{\rule[2ex]{0pt}{1ex}} % extra distance before a table row
\newcommand\B{\rule[-2ex]{0pt}{1ex}} % extra distance after a table row
\usepackage{multirow}
\usepackage{booktabs}
\usepackage{rotating}
\usepackage{threeparttable}
\usepackage{adjustbox}
\usepackage{siunitx}
\begin{document}
\begin{sidewaystable}[h]
\footnotesize
\centering
\begin{threeparttable}
\caption{overview of the carried out mechanical tests for the development of DHCLT}
\label{tab:tests-overview}
\begin{tabularx}{\textheight}{n{0.8cm} n{1.8cm} n{1.1cm} n{2cm} ZZZZZZZZZZZZZZ}
\toprule
\multicolumn{4}{l}{\textbf{DHCLT variant}} & \multicolumn{4}{l}{\textbf{compression shear}} & \multicolumn{5}{l}{\textbf{bending shear tests}} & \multicolumn{5}{l}{\textbf{bending tests}} \\
& & & & \multicolumn{4}{l}{\textbf{tests}} & & & & & & & & & & \\
\midrule
no. & side view & cross section & \multirow{2}{2.1cm}{material cross layer / middle layer} & $ w_c $ & $ \delta_c $ \tnote{a} & $ w_m $ & $ \delta_m $ & $ w_c $ & $ \delta_c $ & $ l_s $ \tnote{b} & $ w_m $ & $ \delta_m $ & $ w_c $ & $ \delta_c $ & $ l_s $ \tnote{b} & $ w_m $ & $ \delta_m $ \\
& & & & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{mm}] & [\unit{\percent}] \\
\midrule
S-0 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/s-0-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/s-0-cs.png}} & spruce / spruce & 115 & \qty{100}{\percent} & 115~/ 230 & \qty{100}{\percent} & 120 & \qty{100}{\percent} & - & 100 & \qty{100}{\percent} & 185 & \qty{100}{\percent} & - & 185 & \qty{100}{\percent} \\
\T B-0 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-0-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & 120 & \qty{100}{\percent} & 115~/ 230 & \qty{100}{\percent} & 120 & \qty{100}{\percent} & - & 100 & \qty{100}{\percent} & 120 & \qty{100}{\percent} & - & 185 & \qty{100}{\percent} \\
\T B-1 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-1-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & 120 & \qty{50}{\percent} & 115~/ 230 & \qty{100}{\percent} & 120 & \qty{53}{\percent} & - & 100 & \qty{100}{\percent} & 120 & \qty{50}{\percent} & - & 185 & \qty{100}{\percent} \\
\T B-2 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-2-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & 80 & \qty{50}{\percent} & 115~/ 230 & \qty{100}{\percent} & & & & & & & & & & \\
\T B-3 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-3-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & 40 & \qty{50}{\percent} & 115~/ 230 & \qty{100}{\percent} & & & & & & & & & & \\
\T B-4 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-4-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & 80 & \qty{25}{\percent} & 115~/ 230 & \qty{100}{\percent} & & & & & & & & & & \\
\T B-5 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-1-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-5-cs.png}} & beech / spruce & 120 & \qty{50}{\percent} & 115 & \qty{50}{\percent} & 120 & \qty{53}{\percent} & - & 100 & \qty{50}{\percent} & & & & & \\
\T B-6 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-2-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-5-cs.png}} & beech / spruce & 80 & \qty{50}{\percent} & 115 & \qty{50}{\percent} & & & & & & & & & & \\
\T B-7 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-3-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-5-cs.png}} & beech / spruce & 40 & \qty{50}{\percent} & 115 & \qty{50}{\percent} & & & & & & & & & & \\
\T B-8 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-4-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-5-cs.png}} & beech / spruce & 80 & \qty{25}{\percent} & 115 & \qty{50}{\percent} & & & & & & & & & & \\
\T B-9 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-1-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & & & & & 120 & \qty{47}{\percent} \tnote{c} & - & 100 & \qty{50}{\percent} & & & & & \\
\T B-10 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-1-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & beech / spruce & & & & & 120 & \qty{54}{\percent} & 314 & 100 & \qty{100}{\percent} & 120 & \qty{52}{\percent} & 356 & 185 & \qty{100}{\percent} \\
\bottomrule
\end{tabularx}
\end{threeparttable}
\end{sidewaystable}
\end{document}
\begin{sidewaystable}[h]
\footnotesize
\centering
\begin{threeparttable}
\caption*{\ref{tab:tests-overview}: (continued)}
\begin{tabularx}{\textheight}{q{0.8cm} q{1.8cm} q{1.4cm} q{2cm} ZZZZZZZZZZZZZZ}
\toprule
\multicolumn{4}{l}{\textbf{DHCLT variant}} & \multicolumn{4}{l}{\textbf{compression shear}} & \multicolumn{5}{l}{\textbf{bending shear tests}} & \multicolumn{5}{l}{\textbf{bending tests}} \\
& & & & \multicolumn{4}{l}{\textbf{tests}} & & & & & & & & & & \\
\midrule
no. & side view & cross section & \multirow{2}{2.1cm}{material cross layer / middle layer} & $ w_c $ & $ \delta_c $ \tnote{a} & $ w_m $ & $ \delta_m $ & $ w_c $ & $ \delta_c $ & $ l_s $ \tnote{b} & $ w_m $ & $ \delta_m $ & $ w_c $ & $ \delta_c $ & $ l_s $ \tnote{b} & $ w_m $ & $ \delta_m $ \\
& & & & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{\percent}] & [\unit{mm}] & [\unit{mm}] & [\unit{\percent}] \\
\midrule
\T B-11 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-11-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-11-cs.png}} & beech / beech & & & & & 120 & \qty{53}{\percent} & - & 100 & \qty{50}{\percent} & & & & & \\
\T B-12 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-12-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-11-cs.png}} & beech / beech & & & & & 40 & \qty{55}{\percent} & - & 100 & \qty{50}{\percent} & & & & & \\
\T B-13 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-13-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-11-cs.png}} & beech / beech & & & & & 100 \tnote{d} & \qty{45}{\percent} & 314 & 100 & \qty{50}{\percent} & 120 & \qty{52}{\percent} & 356 & 100 & \qty{50}{\percent} \\
\T K-0 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-0-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & oak / spruce & 120 & \qty{100}{\percent} & 115~/ 230 & \qty{100}{\percent} & & & & & & & & & & \\
\T K-1 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-2-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-0-cs.png}} & oak / spruce & 80 & \qty{50}{\percent} & 115~/ 230 & \qty{100}{\percent} & & & & & & & & & & \\
\T K-2 & \adjustbox{valign=m}{\includegraphics[width=1.8cm]{imgs/b-2-sv.png}} & \adjustbox{valign=m}{\includegraphics[width=1.1cm]{imgs/b-5-cs.png}} & oak / spruce & 80 & \qty{50}{\percent} & 115 & \qty{50}{\percent} & & & & & & & & & & \\
\bottomrule
\end{tabularx}
\begin{tablenotes}
\item[] $ w_c = $ cross lamination width, $ \delta_c = $ cross layer density, $ w_m = $ middle lamination width, $ \delta_m = $ middle layer density, $ l_s = $ support densification length
\item[a] The cross layer density is determined by the lamination width and the spacing - the ratio of the total lamination widths and the specimen length may be different.
\item The support densification length is measured from the support axis.
\item[c] Specimen with variable cross layer density - the indicated value is the mean density over the whole specimen length.
\item[d] Laminations from veneer rest rolls - the actual widths varied significantly.
\end{tablenotes}
\end{threeparttable}
\end{sidewaystable}
Den Befehl \renewcommand\tabularxcolumn[1]{m{#1}} habe ich ehrlicherweise auch noch nicht verstanden. Mache ich da etwas falsch?
Ich bin für jede Hilfe dankbar.
Viele Grüße
Lucas