Multiply selection of video transition didn't works

Studio 17b8. I try to select multiply transition by selecting clips and left click mouse on a transition like v16 but doesn't happens.
How to resolve it?

To select multiple transitions, you'll need to click on the transitions with CTRL held down.

I'm not aware of any other way to do it.

ok. And what is about 100000 transitions?

I found the following workaround to select multiple transitions

Weird.

I found the following workaround to select multiple transitions

Great tip. Thx.