Sorry Boozy Floozie, no. Santa told me you had been a very bad boy this year
Even if it was possible to use the Alt key + drag it would interfere with the regular 3D operations.
To do something like this through zscripting alone you must use mapable keys and preferably keys that are not a part of the default hotkey setup.
Furthermore you will need to end the draw size adjustement(for example) by clicking the mouse button. So, for example, you press ‘n’, drag the cursor to adjust some value(s) and select that value by clicking the left mouse button.
Give me a year or two and I’ll have it up and running 
Wet-nap: I am looking into various setups and will try to include as many as possible. Still waiting for the Mac version though and the zscript info that will follow.