Purpose of multiple Selectors in UI Element?

[demaionewton]

UI elements can have multiple selectors, but I haven't been able to find any documentation on what having multiple selectors does.

Does it start with the first selector, if it works, it's done, if not, it goes to the next?  Does it go based on the autonaming?  In the example below, would Default Selector run first or Default Selector 2?

Can anyone explain the purpose and use of multiple Selectors?

[Henrik_M]

Yes, it works as you guessed. The top one is tried first.

Use cases are quite rare, and it is definitely not a thing you would use often enough for the PAD team to dedicate a quarter of the space to the feature #facepalm 🤦‍♂️

[demaionewton]

The thing I have to laugh at is the naming convention of Default Selector 1, 2, etc.  If I change the order Default Selector 3 can come before 2, etc.  Does it only go to the 2nd selector if the first one fails?  And, Could I, say, create a UI Element named login that would use the same user name across all websites by using a selector from each website.  It would only succeed for the one it was on...