I solved the original question but that only let me have the Addin for that sheet.

What I'm after is a customised menu with one button for my WorkSheet Manager addin that will always appear within my spreadsheet regardless of what workbook I decide to open and use it with.

I don't want to have to put a little sub into each workbook before I can use my addin.

My addins with just functions have worked okay; it's the use of a form that's getting to me.