Increase syslog lines

Hi everybody!
I installed Dude server (6.36rc37) on a RB3011 which receives logs from many remote Mikrotik hotspots (RB951Ui-2HnD).
Unfortunately it only keeps 10.000 lines
I can’t find anywhere how to increse this limit.
Can someone help me out with this?
Thanks!!!

You can set it to create a new file when needed. The link bellow may help You.
http://wiki.mikrotik.com/wiki/Manual:The_Dude_v6/Logs

As Paternot wrote, you will find how to do this in wiki article he referenced.

For more visual representation: