To edit Variable Options, go to Tools -> Options and click Variables in the General category.
Variable Sense allows you to see a drop-down list with possible completions for variable names:
The list opens automatically when you type % to begin entering a variable name. You can control this behaviour as follows.
"Enable Variable Sense"
Uncheck this checkbox if you don't want to see Variable Sense drop-downs when typing variable names.
"Variable Types To Show..."
Select the Variable Types that you wish to show in the Variable Sense drop-down.
Design Time Variables
"Variable Values to show in hints at design time"
When you hover your mouse over an text field or memo box on an action's property page, you will see a hint field with all of the variable references in that field expanded:
You can choose to use either the Variables' Default Values, or their Current Values, during this expansion.
Resetting Variables at Runtime
Non-persistent variables are reset to their default values each time a project is run. By selecting these options, you can also choose whether they are reset when running part of a project.