Hey Gasman,
I have the same Problem here. i am at Ubuntu 17.10 and Kstars bleeding (ppa) with EKOS and EQmod-Mount (via EQ6 / AstroEQ).
Problem 1: I only like to have 3 or 4 slew params up to say 150x, because my motors can't handle more (I am using AstroEq with custom steppers). I don't need and cannot use 600x, 700x, 800x. My motors would stutter at these speeds. And the "Custom" list item comes at the end of the list. This altogether leads to unprecise slewing between. This is a most severe problem for custom mounts.
Using EQmod for example I can add, remove or set my slewing profile so it meets my needs. Should be no problem in EKOS either
As I see this Option to alter the count of list items exists only under EQmod (ESCACOM) on Windows.
If in the Windows ESCASCOM software this possibility exists to alter the indi server settings, it should be also possible to set a property via "indi_setprop" which would be enough for me to get things running. But I simply cannot identify the settings. And documentation about this topic is not very easy to find.
Problem 2 (solved, see above): After press to slew the motor slews at the desired speed. Pressing another time, the slew falls back to 1x. An so forth ...Very annoying behaviour.
Any help would be appreciated.
Cheers Axel
Not to mention: Kstars and EKOS seem to be a really, really good system!