Button/Link to show external documentation

Hi all, 

We have external documentation about our project and certain use cases we have implemented in M-Files. The main idea is to show button/link to that external documentation in M-Files client.

I've done some readings and I the Command approach could be suitable. Having button in Task pane or perhaps drop down in under username (right-up corner) would be a good and acceptable solution (right menu click would work but could we use right-up corner!?). However, I am not sure how to open documentation's link in the browser as this would be ShellFrame. Is it possible somehow? Or do I need to use dashboard?

Thanks.

Dejan