Various questions about the Volvo Navi RTI

Hello, for a few days I have been driving a V50 with RTI Navi. I have a few questions about the operation: – At the start I can choose between simple and advanced mode. How can I switch to one of these variants after selection? – The TMC function gives me riddles. I have set the standard option (IMHO semi-automatic) in the traffic message options. In the rush hour I entered a STrecke, where there are guaranteed 4-5 traffic jams (permanent construction sites etc.). After some time the TMC symbol was displayed on the top left of the map – but no announcement or similar. How can I read this traffic message now? In the traffic message menu -> I always get read messages: “No traffic message available”. – 500m in front of the destination in a small village where there are guaranteed no traffic changes, I want to get there and again the message “changed traffic situation – new route 150m shorter, accept, reject or display” (meanwise). – How can I fix the TMC station? How can I stop the station without stopping my channel? I just have to stop the route again.