Indeed, I think it's difficult (if possible) to change the behaviour of
the multiselection this way.
The TTreeview.MultiSelectStyle property allows you to change from
CtrL+Click to Shift+Click.
https://lazarus-ccr.sourceforge.io/docs/lcl/comctrls/tmultiselectstyle.html
To make the multi selection with just a left click, I think the best way
would be to use the TVirtualTreeView with checkboxes.
_______________________________________________
fpc-pascal maillist - fpc-pascal@lists.freepascal.org
https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
