How to append to font setting ?

[ysalmon]

I have multiple tables that share common characteristics, so I defined

\NewTblrEnviron{tblrsql}
\SetTblrInner[tblrsql]{hlines,vlines,cells={font=\scriptsize}, rows={abovesep=1pt, belowsep=1pt}}

But in a given table, I also want to set the first line in slanted, so I say

\begin{tblrsql}{row{1}={font=\slshape}}
blabla
\end{tblrsql}

My problem is that the font specification in the env replaces the one given in the general definition. I tried to say font+=\slshape but this is an error.

I would like to keep a separation between the general font setting (that sets the size), and the specific thing for the first row of a specific table.

[lvjr]

See issue #127. You can make a pull request if you need this feature. It should be an easy job.