Unfortunately for swiper to work automatically 'Auto Export' must be on.
I didn't really specify that in the video or readme so I will update the readme to mention this.
This is due to the way the 'Designer Source Control' system is set up. When the right-click 'Team -> Sync with On-Disk Project' is used I don't have a way to be able to listen/ get involved.
But when auto export is enabled, it should run during the build process which is when swiper can detect the changes in the on-disk project.
I may be able to do a right-click on the project 'filter project'
alternatively if the IBM team can include an extension point to add metadata filters to then I can make it work in all cases!