New to Extension Programming: Question

[WhoAmIWhoWho]

I wasn't sure where to ask this so I apologize if I put it in the wrong place.

I'm new to this, as the title indicates, but I was curious how difficult tab control was. I would like to create something primarily for myself that would give me more control selecting tabs. An example would be selecting tabs to the right and perhaps merging them with another window. I'm not expecting to be able to create something like that any time soon, however I would like an opinion on the difficulty so I can determine where to allocate my time.

Thanks in advance!

[Noitidart]

Merging to another window is a bit tricky for a new comer. You'll have to deal with something called docShell swapping, which is not a web dev technique, it is specific to web browser dev.

Selecting multiple tabs isn't hard, you would just change the color of them to indicate they are selected.

Doing something with them depends. If you want to close them all, easy peasy for new comer.