Multiple Loads in a Transient Analysis

Hi,

I need to resolve a transient(direct) analysis on my model.

There are 8 different imported load that I merged into 1 with a LOADADD card, then I create a TABLED1. Now  I need to create a TLOAD1 to give the forces a time dependence function. the problem is that TLOAD1 field 'EXCITEID cannot reference the LOAD and LOADADD Bulk Data Entries'. How can I resolve a transient analysis having more than 1 load?

Thanks for the help!