b7078d22____Audacity_Development_Manual__Shortcut
[Button] Append-Record [What it does] Record starting from the end of the selected track(s). [Shortcut] 
SHIFT + R
P
S P A C E
S H I F T + S P A C E
H O M E
E N D
R
S H I F T + R
Playing and Recording - Audacity Development Manual
Shortcut