Why can't I launch a script when already inside a script?

You can.

When one script is running, and you activate a second script, the first script pauses and waits for the second script to finish. If you are attempting to activate one script from another script and it does not work, there may be a mistake in your script. You should seek help on one of the Forums.

See Also

• How do I call one script directly from another script?
• Why does my on-keypress script freeze/produce errors when I hold down a key?