OpenShot’s implementation of the JKL functionality (J to rewind, K to stop, L to fast forward) worked - somewhat (sometimes we had to hit the key twice to actually go in the direction we wanted). Sadly though, thoseones used to navigate around your work didn’t function on the machine we tested it on, even moving one frame at a time along the timeline using the appropriate arrow keys didn’t work. OpenShot has a series of customisable keyboard shortcuts for most of what you’d need to do while editing a video. It does however make it much easier to move and animate a clip around the screen rather than having to fiddle with its properties values. However here again you cannot constrain its proportions when resizing it (even holding down the shift key - a convention adopted by numerous other apps - does nothing).

It is possible to manipulate a clip directly from the main Preview window by selecting it in the Timeline, and choosing Transform from its contextual menu. The number of available effects is quite paltry (Image credit: OpenShot) Workflow

Openshot linux