Assign multiple macros to a single button/group toolbar

From this answer I know how to add one specific macro to a single toolbar button
But what if I want to add a group of my favorite macros, how would I do that?
Then on a click/shortcut this group should expand/show a drop-down menu or something and allow me to select a specific macro within
I know I can “Run Macro…”, but it has all the macros, which is not suitable for a quick selection of a frequently used macro

You can write another Macro, which calls each macro, and give it a Button.

You can test this Apache OpenOffice Community Forum - Menubar button with popup menu or dropdown in OOBasic - (View topic)