How to hide or comment out Dropdown menu im Mayan EDMS

I want to hide the above marked option from that drop down

“About this” has copyright information and cannot be removed. If you do you violate the license of Mayan.

The others are how Mayan raise money. If you remove then that’s means you are not helping Mayan make money.

I think you have questionable uses for Mayan and don;t understand what is the purpose of open source.

Can you explain this @izidora0k ?

What could be “questionable uses” of Mayan, if the license allows anybody to modify software?

“Get the book” and “Online store” are just commercial adds (links). So how can something be “open source” if you can’t remove two ads?