To add in an event total, click ‘Create Event Total’ button on the bottom left of your advanced lot. You then need to give the event total lot a name. To build out an event total you work in the same way you would for building a standard advanced lot, however instead of adding a line item row you need to add an event total (see image 1). When you have added in your event total (line item row) you then add in your columns by pressing the ‘Add Event Total Component Column). Now give the column a name. The cells will appear green, and you will be able to enter formulae within each cell by clicking on the ‘Enter Info’ button within each cell (See image 2 below).
For more information on building formulas see Total columns, total rows & formulae knowledge base article
Image 1:
Showing where to add an Event total line.