Merchant's tab upgrade - all / choosen ones?

Hello,
Quite a bit time ago i bought some tabs, somew premium ones, some specialist like currency etc.
I checked on website - Merchant's tab upgrade, and i see that:

There are 3 buttons, but it was like couple transactions in "minutes". When i click the button, all the tabs from that transaction is going to be changed? Maybe there will appear question like "how many of the tabs want to upgrade?" or it's just gonna bew upgraded all of them?
I've got 17 premium tabs (4 of them are the "starting" ones), i want to upgrade propably 5 of them, is there possybility i'm gonna to choose how many will be upgraded?