You can learn about the three options (before-tax, ROTH, and after-tax) by viewing this video from Wespath. This is an hour-long video, but it will tell you all that you need to know about UMPIP to make the best first selection.
Once you have made your decision as to which option(s) you prefer, enter your percentage or dollar amount contributions in this section.
If you elect before-tax, you must make an election in the Automatic Contribution Escalation section to have your contribution increased one percentage point each year or you can elect to not have this automatic escalation. If you do not check either box, it will default to the amount being automatically increased each year. For more information, you can watch the video created by Amy King, Conference Benefits Officer, found here.