Locate flowchart errors

It often happens to me that connectors are not correctly connected, though I can tell which the problematic ones are. When the error occurs, I have to check each single one of them. In some cases I resort to recreate the final flowchart in a new document, hoping to make everything right.

Would be very helpful to be able to select the error line and see the incorrect connector highlighted.

Similar proposal für mistakes in using the decision-element. I often find it difficult to locate the one that I opened but forgot to close, especially where there are many branches (subdecisions) nested into each other.