I'm using Qt Creator as my IDE for a non-Qt project, cross-compiled for arm-linux, to be deployed to a raspberry pi (Qt Creator is a pretty good IDE even when not using Qt!). The project doesn't use qmake to build, so there's no .pro file to modify.
I'd like to add a deployment step where the main executable, and maybe more things in the future, get copied over to the device, ready for testing or debugging. From the IDE, there seem to be no way to add files to be deployed:

All help pages I've seen say to add something to the INSTALL variable in your .pro file, but of course, that doesn't apply to me. Is there a way to do this, or is the "custom command" (and writing my own deployment script) my only option?