After you select Prism as a workframe type, the Workframe dialog contains 2 tabs: Size/Division and Axis descriptions.
Options on the Size/Division tab:
If the Non-uniform option next to Height is not selected, a workframe will be generated automatically based on the parameter values defined in the edit fields. If Non-uniform is selected, the edit fields become inaccessible. The (…) button becomes available; click it to open the Lines distribution dialog where you can define the position of successive workframe axes.
Options on the Axis descriptions tab:
For each of the options, there are 3 fields:
If the User-defined option next to the options is not selected, a workframe description will be generated automatically based on the parameter values defined in the edit fields. If User-defined is selected for any of the options, the edit fields for that option become inaccessible. The (…) button becomes available; click it to open the Lines description dialog where you can define the description of successive workframe axes.