First, thanks for the quick reply.
For my Windows 10 machine running KStars/Ekos, I used the EFW ASCOM driver from ZWO's site (see attachment).
For my dedicated Linux (Ubuntu( machine running KStars/Ekos, I loaded the recommended Indi driver/libraries (see attachments).
I would assume that I would have gotten the latest software version, so I'm not sure why version 0.3 is still listed under the ASI EFW tab in Ekos.
I've been struggling with this issue for several weeks and to no avail, so I am asking the community for help.
My main imaging setup consists of the ZWO ASI1600MM CCD coupled with their ZWO 8-position EFW.
I use KStars/Ekos/Indi along with Stellarmate as my software control and it truly is an amazing integration of quality modules needed for astrophotography.
Prior to my upgrading to the 8-position EFW, I had been using ZWO's 5-position miniEFW and my system worked flawlessly for just about 2 years.
Once I decided to incorporate NB filters with my LRGB filters, it made sense for me to upgrade my EFW to an 8-position version.
That's when the trouble began. I cannot get the 8-position ZWO EFW to show more than 5 filter slots. I've loaded the recommended filter wheel drivers from ZWO and those from ASCOM (Windows 10 environment).
When using Ekos, the filter wheel is recognized, but only 5-slots show up. I cannot add nor configure more slots. However, if I use software like APT Tools or SharpCap, the filter wheel ISrecognized and listed as an 8-position device.
I've tried installing KStars/Ekos/Indi on a dedicated Linux machine and the same problem exists.....8-position EFW shows only 5-slots.
I've attached two screen shots of the filter wheel equippage from Ekos.
Any help or advice would be greatly appreciated.