mplemented two new UFO models for High Electric Charge Objects (HECOs) pair production by including resummation effects as described in this paper:  https://arxiv.org/pdf/2310.17452.pdf.  
These models include: 1) γ exchange; 2) γ/Z^0 exchange.
You can find more detailed description on section IV of the paper.

models available here:
https://drive.google.com/drive/folders/1iHJWJKGd-nLOTpUqzbwlCULex2mQhNm1?usp=drive_link