Total Commander

Can you remember files mask between Synchronize directories dialogs?

I often compare directories with ".git" dirs and currently have to setup mask "*.* | .* .*\" for each compare..

well, the last used mask entries are already remembered.
Just open the drop down box or click into it and press cursor down.

Press F2 or use the little (overlooked by many) icon in the upper left corner of the Sync dialog. Then you can save and open saved searches.