As I noticed, if somebody want to have Management Tools, that user should be an Administrator in order to see Management Tools for servers. I would find it useful if this option could be added to a role group in order to use it.
If I go to the Roles and tick in the Administrator role, then the user gets much much more privileges than needed (eg.: Sees all the other connections which he should not be able to see, etc.) but the user who is a member of the particular Role can use Management Tools. But I don't want to give admin privileges to every user.
It's possible to provide access to this tab to your users without granting them the administrator right.
To do so, go in Administration -> Data Source Permissions -> Miscellaneous. If you want to provide access to what I see in your screenshot, you would need to provide them access to Remote Tools, Web management tools and Console management tools.
Although our various support queues will be monitored for emergencies, Devolutions' offices will be closed on June 24 and July 1st, 2019.
Thank you for the answer, I clearly missed this option!