can’t see Filter Menu By (groups) feature when using suitecrm as admin (didn’t try this by another user). I suppose it should be under More button. Option is On for admin user in user settings.
i mean having the ability to show group tabs in the main menu
This has been removed to accommodate for the new menu style. If you wish for it to be included in SuiteCRM further releases, post the suggestion in our Feature Requests topic.