What does this little red triangle indicate on an Enterprise Architect UML diagram?

Question

Using Sparx Enterprise Architect 12.1, I've done something to a UML element which has resulted in the element being decorated with a little red arrow, in all the diagrams in which the UML element appears. For the life of me, I can't figure out what the arrow means, or which setting or property it corresponds to, and I can't figure out how to get rid of it. Can anybody help?

Answer 1

It's a bookmark. Select it and hit Shift+Space and it will toggle. There is also a predefined search which allows to find bookmarked elements.

N.B. This once was a recurrent question on Sparx' forum with top ranking ;-)