when adding content to panels there is an option "existing node", then new popup is displayed:
Configure new Existing node
Enter the title or NID of a node
After typing node name I could choose a node.
As have many different nodes of different content types with similar names I couldn't easily choose the right node.
It would be useful to see what is a content type of nodes displayed by autocomplete.
I hope this feature could be useful to others also.
PASSED: [[SimpleTest]]: [MySQL] 121 pass(es). View
FAILED: [[SimpleTest]]: [MySQL] Unable to apply patch ctools-displaycontenttypenode-1844086-1.patch. Unable to apply patch. See the log in the details link for more information. View