Hot Tabs 2015-2019
HotTabs provides commands and matching shortcuts that will let you press:
It selects tabs in the document well. Like these:
Note that there is one pinned tab on the left and three unpinned tabs following it. Ctrl+Num1 will go to the first pinned tab. Ctrl+Alt+Num1 will go to the first unpinned tab.
With the commands exposed in Tools->Options->Keyboard, you can apply your own keyboard shortcuts to these commands.