For some reason, the Modified Magnet tool won't load if it's in the Content Folder's 'tool_pro' folder but it will load if I move it in the 'tool' folder alongside the modified Transform Points tool.
So, I'm assuming if I move other mods to the Content Folder, the files should work from the folder where they're supposed to go. But if 'pro' mod files put in the 'tool_pro' folder do not load, try moving them to the 'tool' folder.
I better eat my lunch now.
![Smile :)](./images/smilies/icon_smile.gif)
Edit: As described below in Wes' post, the 'tool_pro' folder in the Custom Content Folder seems to be ignored by Moho. For all mods and other third-party tools, use the 'tool' folder instead.