Most modules come with presets that quickly dial in useful parameter settings.
These presets give you good starting points for specific situations, and for basing your own tweaks on.
Preset buttons can be distinguished by their icons; they bear the icon of the module you launched. Most modules execute the first preset from the left by default upon opening.
The 'AutoMask' button launches a popup with access to two quick ways of creating a star mask.
Even the way StarTools displays and scales images, has been created specifically for astrophotography.
AutoDev will keep solving for a global strecth that best shows the detail in your RoI.
You are forgiven if, at first glance, you get the impression StarTools offers only the basics.
You can convert everything you see to a format you find convenient. Give it a try!