Feature Request: Ability to tag team members via the Mobile App

On the website, I can “@” tag a team member easily with my list of members coming up when I type the @ symbol.

The Mobile app does not do this. This is a huge feature for me.
The mobile app has been bit clunky but does what I need for the most part except not having this ability makes it almost useless to me.
I need to be able to easily tag a member in comments and such.

Any thoughts on how hard it would be to build this into the app?

This is now available on the mobile app. Version 4.2.2 and higher.