My gosh MKP1000. I saw your other question in your other topic.
It looks/feels like you never rode a bike and instantly want to participate in a Bike Parkour.
May i suggest that you first create a chat room, then worry about bubbles.
Now, i can tell you that a chat room is way out of my league, but then again, i am into Construct for only 17 months (close to).
So may i do a second suggestion. Plz follow at least 20 tutorials, so you understand the basics.
Then build something way more easy to start with.