I have a toolbar that only has buttons for sizes and other various commands, I want it to only appear when I'm in thumbnail mode.
I know this function existed in Dopus before but can't find it with searching these help forums.
You need to use the Toolbar command to open the toolbar from what ever button you change to thumbnails with. This won't work, of course, if you change to thumbnails automatically using Content Types...
This is a good example of where an event driven script would be useful - one that allowed conditional statements, so changing the view mode would trigger a script that could, in this case, enable a specific toolbar.
There would perhaps be a more elegant way to do this but this is just an example of how event driven scripting would be useful.