Double-Click Switches Tools
By default, Stykz allows you to double-click on the Stage with the Select tool and it will switch to Subselect, and vice-versa. If you find that you're switching tools accidentally and wish to turn off this feature, you can uncheck the Double-click switches tools checkbox.
Show Tool Instructions
When you select certain tools (like PolyFill, Add Line, or Add Circle), Stykz will automatically show a "tool instruction" in the lower-left corner of the Stage window. If you no longer wish to see these instructions, you can uncheck the Show tool instructions checkbox.