app retailer join – iOS Tetsflight guide distribution to testers teams

I am utilizing TestFlight for distribution of my app for two teams of inside testers. After I add the construct by means of Xcode and later it is proven within the app retailer join, the invites are already despatched. I wish to change the automated distribution to guide. The target is to guide choose on group of testers first after which add others later. Additionally to offer me an opportunity to jot down the take a look at particulars within the construct earlier than sending the invites. Is that this doable? I do not see the any choice to alter the kind of distribution to guide after I add the construct to the app retailer join. Thanks prematurely.