Some mounts have a setting to do this, but many (most?) do not. And I'd guess this ends up be a per-driver thing, though in principle it doesn't have to be. As a former ACP user, I know they can do it for mounts that have no built-in support for consistent approach slewing. 

So the question is, is this already hiding someplace in INDI/Ekos, or would it be a new feature that has to be added?

One thing that has lead to me to wanting this is that I'm trying to figure out a way to do dithering via pointing for when backlash is an issue; and yes, I've got too much backlash to do dithering well via guiding, especially in Dec. And my Canon T6i cameras show some horizontal banding that I suppose I could work around by rotating the cameras, but I kind of like the camera axes to line up with RA and Dec....

If I treat the problem as it I were building a mosaic that overlaps about 95% and had consistent approach slewing with some sloppy tolerances, I think I can end up with an effective workaround. But consistent approach slewing would be good in general since it would mean there should be little backlash to deal with at the end of pointing.

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