History options -- in chat window or off

I don’t know how to go about this as a plugin, and don’t really want to brach off making a spark dirivitave, but I have got a lot of complaints from women at the credit union that don’t want the chat history in the chat window but want to be able to look it up when they need it like they were able to before I switched them to Spark. Could I submit this as a development idea for an upcomming version. More importantly, does everyone understand what I typed?