How to add shortcut keys to tool extensions

OK, you could use a JSFL command to select the tool you want.
The command can be triggered with a key of your choice from the keyboard.

I'll use the PolyStar tool as an example, but assume it's any script you want:

1. Go to the Tools folder in Animate and find the PolyStar.jsfl file.

2. Open it and find the configureTool() function.

3. Pay attention to the line
    theTool.setToolName("polystar");
    and write down the name in the parentheses.

4. Go to the Commands folder in Animate and create a file called SelectPolyStar.jsfl.

5. Write the following code in it:
   fl.selectTool("polystar");
   and save it.

6. In Animate, open Edit > Keyboard shortcuts > Commands, select SelectPolyStar and assign a keyboard key you want.