Go back one screen using [S8] and choose "Fixture Patch".
Choose a Fixture Number, typically starting with 1. Use arrow keys or press [S3] to navigate the cursor to the "Personality" column.
Type the Personality number that you want to use and Press [S3]. That personality name will appear in the column.
Use Arrow keys to navigate to the left and fill in the Start Chan and the starting DMX address, beginning with Port number. Choose any other appropriate settings for your personality.
Press [Stage]. Multiple Parameter fixtures will be highlighted with a gray bar. Type {Fixture} ([S8] on one of the Softkey pages) and the fixture number to select a fixture. You will get a list of attributes to control. Use the arrow keys to navigate through attributes. Use + and - keys to scroll through fixtures.
You can also directly control parameters by their channel number. For instance, Intensity is the 13th attribute of a Studio Color Fixture. If a Studio Color is patched with Start Chan 1, typing "Chan 13 at 75" would turn the light on at 75%, the same as typing "{Fixture} 1 at 75".
Related Links/References
Creating a Multiple Parameter Fixture Personality on an Express. Click Here.