Override System Variable/New User Variable/Edit User Variable

Go Up to Environment Variables

Go Up to Debugger Environment Block

Tools > Options > Environment Options > Environment Variables > Add Override
Tools > Options > Environment Options > Environment Variables > New
Tools > Options > Environment Options > Environment Variables > Edit
Project > Options > Debugger > Environment Block > Add Override
Project > Options > Debugger > Environment Block > New
Project > Options > Debugger > Environment Block > Edit

Use this dialog box to create or modify user overrides for system variables.

Item	Description
Variable Name	Type a new variable name or modify an existing one.
Variable Value	Type a new value or modify an existing one.