I know that there is an option to add portable instances of Mozilla-based-browsers to CCleaner. This also functions for Chromium browsers. But it took a while since I found the How to and it is not comfortable at all.
So I would be looking forward to an option in CCleaner to add portable instances of programs. It could be in the settings menu.
This would be a good feature because for example I have 5 different instances of Firefox Portable and 3 different instances of Iron Portable installed. All for different purposes.
Would be very nice to add this feature in a future version of CCleaner. Maybe later on other portable programs could be added to.