Using script editor how do I hold down click for a certain period of time?

As Viking noted, there is no built-in way to do this.

Alternatively, download and install cliclick

It gives you a command-line interface to emulating mouse (and keyboard) actions, and supports drag and pause actions.

There is no AppleScript feature, or one in Script Editor that allows you to hold down a click for any designated length of time. A click is a discrete event, and then AppleScript goes on to the next activity.

see answer #1

https://apple.stackexchange.com/questions/248861/how-to-make-applescript-hold-a-key-for-2-seconds

Robert

That interesting. Tetsujin over on stack overflow That suggests this:

tell application "System Events"
        key down {command}
        delay 2
        key up {command}
end tell

key down is a keyboard command, not a mouse click, which is what the OP is asking for (I think)

I missed that point.

Robert