Ability to write member's name

Hi there :)

Maybe it will be interesting to add this feature in IP.Chat :

the possibility to write/call member's name more easily.

For example, on IRC, we can use TAB key to write fast member's name.

If this is not possible, then it will be fun to use member's name by using mouse click to avoid write completly member's name, key by key.

Thanks a lot!