Star choice for focus

[LELU]

Hello,

An option proposal allowing to choose a star (or a region) to achieve the focus.

Focusing during an imaging session can be tricky if there aren't many stars.

The idea would be to choose a star (or a region) to focus on it.
Astrometry to center the star and focus begins.

Thank you.

[Stefan B]

Removing version: 1.11 Nightly (automated comment)