The superelements created in the FEM menu are displayed in the form below. The superelements for a subcase are selected by highlighting the name in the listbox. Default button unselects all the superelements. If Write PART Superelements toggle is ON in the Translation Parameters, 255 form, then BEGIN BULK SUPER=id sections are written to the input file to define the superelements, otherwise if this is OFF, SESET entries are used.

In addition to selecting the superelement, you can specify the superelement tree definition. This tell the analysis which superelement are upstream of others and thus, not directly connected to the residual structure or superelement zero (SE0). To define an upstream SE relative to its downstream SE, use the form shown below to fill out the spreadsheet. Put focus in the Downstream databox, select a superelement from the list, then select the upstream from the list and press Add. This adds a row to the spreadsheet. Repeat this for every upstream element you need to define. Clicking on a row in the spreadsheet and clicking Remove will remove the defintion. Downstream SEs can only appear in the speadsheet once. This writes the SETREE entry.