For those so inclined, an alternative to waiting for this to be (if) implemented is to use an Autohotkey script. A nice thing about this is you can still use the alt key modifier to glue all following notes of the same pitch.
Here’s the script:
;============ Glue tool while key held down =============
; A script for Cubendo that switches to the Glue tool while the shortcut key is held down, and switches back to the select tool upon release of the key.
$v:: ; Keystroke to invoke function. The $ symbol stops the key from being sent to Cubase
ControlGetFocus, OutputVar, A
if ErrorLevel ; assures that command won't run if a text input field is active
{
Send, 4 ; activates tool via your assigned keystroke, edit this.
KeyWait, v ; wait for the key to be released
Send, 0 ; switch to select tool
}
else
Send, v ; types the letter v into the text input field if one is active
return ; ends routine