The assign commands are used to override the global criteria and are made on a column or column line basis. All assign commands can be issued in Single, Fence, or All mode.

When a command is issued in Single mode, the arrow cursor turns into a target cursor for the selection of the desired member. In Fence mode, the arrow cursor turns into the rectangle cursor that allows the selection of multiple members at a time. In All mode, the cursor remains the arrow cursor but the assignment is made to all members.