I have accidentally deleted button from handy panel ("add an instance", to be particular).
Is there any ways to get it back without deleting preference file?
If you have saved the custom panel, just reload it and don't forget to delete the first one from your list of panels in the main menu.
EDIT: i just noticed you said Handy Panel. Delete the entire panel and restart TVP.
Paul http://www.slocumfilm.com
Desktop PC Win10-Pro -64 bit OS; 32.0 GB RAM
Processor: i7-2600 CPU@3.40GHz
AMD FirePro V7900; Intuos4 Wacom tablet