link tabs in Left and Right panels as Pairs

[dracodoc]

Sometimes I need working among several folders, so I'll make several tabs in TC. For example there are Folder A,B,C in left, D,E,F in right. In most time I need to operate between one folder in left and one folder in right, and I call them a "pair", for example pair 1 as A and D, and pair 2 as B and E.

To switch between pairs need multiple switches -- my current selected tabs are A,D, then if I switch left tab to B, I need to switch right tab to E too. If I need to come back to A,D, I need to switch them twice again.

So if there is a settings to make tabs in left and right panel into Pairs, then when I switched the left panel of a Pair, the right panel tab is switched automatically, that will be great, and I believe there are many cases this feature can be useful.

I suggest to make a menu command, and a keyboard short cut to "group current tabs in left and right panel into a pair". If the tabs was closed, the pair should be canceled.

So basically it's like the save directory with target directory feature, but don't need to be permanent.