I have seen this on many servers however I am not seeing this as an option or how to get this to work in game. 
The ablility to have the items from the kits show a popup notice on the right hand side. Allowing players to know the items from the kit was given to them.

I have had many requests on this as players are use to seeing this on many servers. Its frustrating for players and myself to have to press the Tab key to see if they/we have received any of the items from the kits.

You already get a popup telling you the "kit has been redeemed"  and you should be able to check your inventory without any difficulty, if you redeemed the kit to get weapons you would have to open the inventory anyway to move the weapons to your belt.
I dont understand that  " players are used to seeing this on many servers"  when it is obviously not part of the plugin and its absense led to your request for inclusion ?