The Programmer's WorkBench has a number of “switches,” or user-configurable options, that control features such as how many lines the screen scrolls or whether you are prompted to save a file when you exit. Each switch has a name and can be assigned a value.
There are two ways to set PWB switches. The easiest way is to choose Editor Settings from the Options menu. Saving the changes made to Editor Settings updates your TOOLS.INI initialization file. You can also directly edit TOOLS.INI. Either method can be used for more elaborate customizations, such as writing macros.