Adding a script to the top toolbar

I feel like I should know this. So, I know the some script products come with scripts that add them to the toolbar. I also played around once and saw that I could decide which tools I wanted and didn't want up there. There is a drop down that says scripts. Can I manually ad a script to that? I use Look at me 2 in almost every render, and I would like to have that more easily attainable but I don't know how to add it to the scripts drop down or even whether I can . Can I?
Comments
Toolbar or menus? You cana dd to the Scripts or Favourites menus by right-click on a file>Create Custom Action. To add it to a Tolbar you then need to go to Window>Workspace>Customoise and drag it from the Custom group in the action list on the elft to the desired location in the Toolbars tab on the right.
Thank you SOOOO much Richard