$\begin{figure} \par\includegraphics[width=7.8cm,clip]{7548f1.eps} \end{figure}$ Figure 1: Synthetic spectra of Setup2 for a $T_{\rm eff}=3000$ K and $\log(g)=4.0$ displaying the Li I with varied abundances from $\log(\epsilon)=1.3$ to 3.7.
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In the text

$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f2.eps} \end{figure}$ Figure 2: High-resolution UVES spectrum of Cha H $\alpha$ 2 covering the lithium line at 6708 Å (Joergens 2006; Joergens & Guenther 2001) fitted with synthetic GAIA-cond models using 2 different line profile setups as described in Table 2. Upper panel: observation with free fit (first row of each observation in Table 2) and lower panel: observation with "effective temperature fixed fit'' (second row of each observation in Table 2).
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f8.eps} \end{figure}$ Figure 8: Relative change in the spectrum, when assuming a 500 K cooler spot with a spatial coverage of 10% and 50% respectively.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f10.eps} \end{figure}$ Figure 10: The Ti O bands are depicted for Cha H $\alpha$ 4, MJD = 51 617.210 with the free fit with both setups.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f11.eps} \end{figure}$ Figure 11: The Ti O bands are depicted for Cha H $\alpha$ 4, MJD = 51 617.210 with the "fixed effective temperature fit'' setups.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f12.eps} \end{figure}$ Figure 12: The Ti O bands are depicted for Cha H $\alpha$ 6, MJD = 51 658.143 with the free fit with both setups.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f13.eps}\end{figure}$ Figure 13: The Ti O bands are depicted for Cha H $\alpha$ 6, MJD = 51 658.143 with the "fixed effective temperature'' fit.
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In the text

$\begin{figure} \par\includegraphics[width=7.8cm,clip]{7548f1.eps} \end{figure}$	Figure 1: Synthetic spectra of Setup2 for a $T_{\rm eff}=3000$ K and $\log(g)=4.0$ displaying the Li I with varied abundances from $\log(\epsilon)=1.3$ to 3.7.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f3.eps} \end{figure}$	Figure 3: The same as in Fig. 2 for the observation of Cha H $\alpha$ 3.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f4.eps} \end{figure}$	Figure 4: The same as in Fig. 2 for the observation of Cha H $\alpha$ 4.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f5.eps} \end{figure}$	Figure 5: The same as in Fig. 2 for the observation of Cha H $\alpha$ 5.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f6.eps} \end{figure}$	Figure 6: The same as in Fig. 2 for the observation of Cha H $\alpha$ 6.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f7.eps} \end{figure}$	Figure 7: The same as in Fig. 2 for the observation of Cha H $\alpha$ 8.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f8.eps} \end{figure}$	Figure 8: Relative change in the spectrum, when assuming a 500 K cooler spot with a spatial coverage of 10% and 50% respectively.
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$\begin{figure} \par\includegraphics[width=7.4cm,clip]{7548f9.eps} \end{figure}$	Figure 9: The same as in Fig. 2 for the observation of Cha H $\alpha$ 5 using the spectra obtained by Natta et al. (2004).
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$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f10.eps} \end{figure}$	Figure 10: The Ti O bands are depicted for Cha H $\alpha$ 4, MJD = 51 617.210 with the free fit with both setups.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f11.eps} \end{figure}$	Figure 11: The Ti O bands are depicted for Cha H $\alpha$ 4, MJD = 51 617.210 with the "fixed effective temperature fit'' setups.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f12.eps} \end{figure}$	Figure 12: The Ti O bands are depicted for Cha H $\alpha$ 6, MJD = 51 658.143 with the free fit with both setups.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{7548f13.eps}\end{figure}$	Figure 13: The Ti O bands are depicted for Cha H $\alpha$ 6, MJD = 51 658.143 with the "fixed effective temperature'' fit.
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