How to connect custom sources to UTMStack v11

[khamaza1991]

Good day! I am using UTMStack 10.9.2, for which I wrote syslog filters for non-standard data sources. I would like to upgrade to v11, but it's not entirely clear how to proceed. In version 10, I simply replaced the standard Syslog filter with my own, and also replaced the Kaspersky filter with my own, so the logs are normalized and collected properly. In version 11, I cannot simply rewrite the filter, and sequential processing doesn't work either.