Quang T. answered 07/30/19
GIS Professional with experience in Python and Data Engineering
The hotkey to add new rows is ctrl and + (on the num pad) or ctrl shift + (on the number bar on your qwerty keyboard)
To add multiple rows at a time, you have to highlight x amount of existing rows and use the hotkeys stated above. You can't avoid point and click for multiple rows. So if you want to add 20 rows, highlight 20 rows and do the hotkeys stated above