I am a programmer by training and I often find that I have writer's block when I come across certain presentation issues.
I have a piece of software that links a seller user up with his account in an online marketplace. One of the items that frequently comes up is the need to import data from the online marketplace, and export to it.
Right now I accomplish this by presenting the user with "Import" and "Export" buttons. but now I need to capture whether the user wants to
replace the data on either side, or merely
append to it.
A button interface doesn't accomplish this. I need to ask the question, probably with a check-box. But I am completely stumped as to how to present this in a user interface.