Don't put everything possible under one dropdown. Use the available tools:
- Group them logically into multiple dropdowns
- Make the closely related ones command-line options under a single command
- Make the most common ones large, prominent buttons with few options, at the bottom of the panel
- Make less common ones small buttons at the top of the panel
- Put the less commonly used ones 'under the fold' so they are out of the way until needed
----------------------------------
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.