As it is good practice to give a description of your bush trip when you publish on Flightsim.to, BTI gives you the opportunity to do that quite simple. The selection of add-ons you made in the tab World Map are shown in text in the tab Flightsim.to.
When they have a tick mark you have selected them. You can use the tab Flightsim.to also for making a selection.
When you are ready with your selection, you click on the Build Text button.
Your selected add-ons are presented as a HTML line
If you copy these lines, you can paste them in the Detailed Description field on your upload page on Flightsim.to.
You have to click to Submit File button two times. Due to a bug in Flightsim.to, the HTML line is the first time not transferred to proper text.