How to pass parameters between screens in OutSystems?

Passing parameters between screens is essential for creating any user flow. Here in this video see how the same can be done easily with the help of defining input parameters on a screen

[rodrigovarela]

Hi Sir. Great vídeo. Thanks.
Could you pls make a video explaining how to hide parameters passed between screens ( like the post method used in forms) ?
Especially user ids, transaction ids etc.
Just to avoid malicious people being able to access data by changing the ids on the url.
Thank you a lot.

[quasmeh]

Thanks a lot.
How to remove music sound from the background?. I sleep each time start watching

[karthi]

Hi Sir,
I need you assistance in outsystems. can you provide your email.