Level and Level Regular Expression
This setting defines the levels that will be selected by the pen table for processing. Levels can come from the master model, referenced models, and level DGN libraries. The pen table presents a combined list of level names with the duplicates removed.
When defining the level parameter for element evaluation, you can type the values or you can click the Level button to select the values graphically in the Select Levels dialog.
You also can use regular expressions to select levels. For example, if you type a.* in the Level regular expression text box, the pen table section will match every level beginning with a. The comparisons are not case sensitive. If a pen table contains a list of levels and a regular expression, all must match the element level name for the pen table section's output actions to be applied.