I have an application on another computer in the network that uses Log4cxx. There I have defined an appender that tries to connect to my computer on port 4561 and then sends log entries (syslog or custom log format). This works if I use a general TCP listener e.g. YAT (Yet Another Terminal).

Documentation says to the TCP Listener: LogViewPlus processes TCP logs by connecting to a remote server....   So the "TCP Listener" is actually not a listener it's more a client connecting to the server?

It looks like this person want exactly what I want but failed: https://www.logviewplus.com/forum/2095/Trouble-using-the-real-time-TCP-logging-feature
I think he misunderstood that too.

Or I'm wrong? If not, is it possible to add this function in a future update? I really like the software!