set up event items to have additional sources

Author git <vivec@telvanni.eu>
Author date 2018-02-24 15:20:19
Author local date 2018-02-24 16:20:19 +0100
Committer git <vivec@telvanni.eu>
Committer date 2018-02-24 15:20:19
Committer local date 2018-02-24 16:20:19 +0100
Commit 091f00a988c36d670c7fd325901da8f9f0323909
Tree ffaf76a350a2ced4e87649c37d28376e1a2e4785
Parent cbf75487744cc8b0e5dd0ddd038a4a5179334c76
set up event items to have additional sources