This article will show how you can customize your OrbitNote toolbar to hide any features you don't want to appear on your toolbar
When you have a PDF opened into OrbitNote, click on the 3 dots in the top right, then select Settings:
In the settings window that opens, hold down your ALT key, while pressing O N A sequentially. A "Feature Admin" menu should then appear. Select "Feature Admin" and you can then toggle each feature on or off as desired, then select "Save":
And the toolbar will then adjust to display only the tools you have enabled.
In this example I have turned off all features except for the Freehand Drawing, Text Annotations, Text to Speech, and Screenshot Reader: