Rider,
There was a typo there, should be another colon thus
1 = NonexistingTelescope
ummy:params
.................................^ here
You also need to go to the [astro] section and change 'flag_telescope = false' to 'flag_telescope = true' otherwise the change has no effect.
I actually use it a little bit differently, so I can use ctrl-1 for the finder view, ctrl-2 for the widefield eyepiece FOV, and ctrl-3 for the tighter eyepiece FOV, like this:
[astro]
flag_telescopes = true
flag_telescope_name = true
[telescopes]
1 = Finder
ummy:params
1_ocular_0 = 5.0
2 = Pan35
ummy:params
2_ocular_0 = 1.48
3 = Nag13
ummy:params
3_ocular_0 = 0.67
Unfortunately, you can't toggle them on/off, and also the names are placed on top of each other.
Cheers,
Jason.