This patch enables players to control the display of money messages.
Current simutrans shows all money transactions. This can be annoying because the money messages can fill the screen.
(https://simutrans-germany.com/files/upload/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88_2018-09-10_%E5%8D%88%E5%BE%8C7.28.55.png)
So I made a patch to control the money messages. It can be configured in the display settings. "message of all players", "message of active players" and "no messages" options are available.
(https://simutrans-germany.com/files/upload/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88_2018-09-10_%E5%8D%88%E5%BE%8C8.23.32.png)
Now we can disable the money messages ;)
(https://simutrans-germany.com/files/upload/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88_2018-09-10_%E5%8D%88%E5%BE%8C8.23.41.png)
NOTE: This feature is already incorporated into OTRP (https://github.com/teamhimeh/simutrans/blob/OTRP-distribute/documentation/OTRP_information_en.md).
Simutrans shows at maximum 50 messages, the oldest one are then discarded. Anyway incorporated in r8573 , but using a combobox for this purpose.