Singularity Question

So I'm testing out the new killer and am really confused by how he works. The description is super vague on how to really use his powers so I was hoping someone could shed some light on it.

I'm trying to get the TP to work, but whenever I look through the blob cams, there's no option to hit survivors with a slipstream, nor is there one to pop up like Hag. I know I'm missing something, but I legit can't figure out what (doing bot matches and they legit just know when I'm looking on cam so they just hide behind stuff)

Edit: Figured it out. I actually have to catch them on cam to build up the gauge and then I can do the things.

Edit Edit: One thing I also don't understand is why the screen turns red sometimes. I think it's to notify me a survivor is present? Also when it's red , even if I look right at the survivors it doesn't allow me to build up his gauge at all. If anyone on the team is reading this, can there please be much more in depth clarification on it's power? The description really doesn't touch on anything on how to properly use it.