TEtranscripts input datasets

I want to run TEtranscripts between treated and control groups. Each group has 3 technical replicates in data collection. However, when I set two collections (one for treated and one for control) for TEtranscripts, it is required to add another input datasets.

I tried to separate them into 3 different datasets for 3 technical replicates and it run but it did not represent how the technical replicates work.

What should I do?