> This is probably one of the most requested features since TP began, but as yet it hasn't been implemented.
Actually it used to work that way before v8.
A commandline option that determines which config file must be used could solve this.
>The configuration ought to be stored in the database, not an .ini file.
No, that wouldn't work well for multiuser configurations.
To the OP: I'd just set the opening folder to the one you use most often, and make your other often-used folders 'favorites' (right-click on the folder name in the tree, 'Add to favorites'). From then on, two quick clicks will take you there (click on the gold star above the tree).