Rename or Delete variable
Rename variable
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Click on the variable you want to rename.
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Click on the text field where the default name is already given for the variable.
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Enter a new name in the text field.
Delete variable
When you decide you don’t need some variable or you created it accidentally there is an option to delete it.
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Click on the Menu icon
right next to the variable name.
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Click Delete.
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Confirm it by clicking the DELETE button.
Once you delete a variable there is no reverse option.