I'm having a configuration GUI, and want to enable the user to export the settings into a file and load that file later (or on a different computer).
My dialog has several options, and is rather small:
On the bottom I have 3 buttons, where I combine the Import and Export as a single button. Based on the file selection, I choose wheter the user wanted to Export (non-existing file) or Import (existing file).
Is this intuitive/clear behaviour for such a button?
EDIT: After reading the responses, I redesigned the GUI and put the Import... and Export... functions in the menu-bar in the 'File' section (Importing and Exporting aren't the main storage methods, the tool holds the current set of settings). I've also rearranged options: