Nephandus

I have completed the steps successfully but these are not the issue. My flightplan is fully entered and my cockpit is in the state „ready to start engines“. My issue is: I cannot obtain IFR clearance from ATC although I can hear the clearance messages via the radio but I do not have the option to request IFR in the Ms 2024 comms window and the clearance request sent by message via the FMD ATC-COM section never gets a reply

I am having some severe trouble with the usage of ATC comms in this aircraft. I am not using any AI add-ons (and never will) so my intention is to use the internal ATC comm dialogue options of MS 2024. I have successfully switched on the comms system and for some reason receive ATIS info while not having even dialled in the frequency for that yet. Also the text messages appear in COM3 even if that isn't in use or set. I am able to switch frequencies to Clearance but I do not have a dialogue option to request clearance. When I switch to a ground frequency, I can actually request a taxi clearance for departure (but obviously I do not want to do that). When using the ATC COM in the FMS to request clearance, I send the message but do not receive anything back. So my question here is: how do I use the Coms system without any add-ons?