Text Blocks - Join

MIT App Inventor Help
1

Hi! I’m Pedro and I’m trying to get use to MIT App Inventor. I have a little problem, does anybody know how to add a Join text block with 3 slots?? Because I can only find with 2 slots.
Here is a pic of what I would like to do:

Anotación 2020-04-04 200941

Instead of that, I can only find this:
Anotación 2020-04-04 201156

I hope you can help me,
Thanks!

2

Click on the Blue Gear.

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