If you go to the specs folder then to your fp_params_endless xml files and open them in notepad, you should see something that says <events> and everything under that are different events. You should see something under the event named Enabled value = "1". If you change that to 0, that call will not come up so for example, <EFPEventFall> <Enabled value> = "1" Change the "1" to "0" and it should not come up in the game anymore. I believe if you change the number to 2 it will make the call more frequent so if you may, you could do that for police events. As for the earning number of the calls, I don't know how to change it. There is a Earnings value that gives you 35,000 points to use periodically and that's in the firs "paragraph" at the top of that xml file as well as the starting budget. I hope that this has explained the answer to your question.