Thanks for the logs.
You were departing VFR from an uncontrolled airport, so you needed to contact FSS, which you eventually did. You only used Hotkey #0 to 'open you VFR flight plan' but the other keys available for FSS are as follows:
Hotkey #1 - Request to Close Flight Plan
Hotkey #2 - Extend ETA by 30 minutes
Hotkey #3 - Request Weather Advisories
Hotkey #4 - Request Departure or Center Frequency
Hotkey #5 - Request Local Radar Control Frequency
Hotkey #6 - Change Flight Plan to IFR/VFR (toggle)
Hotkey #7 - Request Airport Advisories
Hotkey #8 - Amend Flight Plan to land at next available airport
Hotkey #9 - Report Position
This are obviously detailed in the User Guide... they are also displayed in the PF3 Display utility or in the new In-Sim Hotkeys window.
If you want to depart an uncontrolled airport when flying IFR you still need to contact FSS, but it would then be handled differently... as explained in the User Guide:-
Should you find yourself departing from an uncontrolled airport, without Clearance, Tower or Ground control facilities you could be excused for asking 'how on earth do I obtain IFR clearance in such a situation'?
Well, here's how it works in PF3...
First you need to tune to FSS and hit hotkey #0, this is your 'wake up' call to FSS... there could be a delay of up to 30 seconds so be patient, they're not ATC controllers. Once they put their coffee down they will ask you to 'go ahead' at which point, if you're using VCP mode 1, otherwise it will be automatic, you can either hit the 'Roger' hotkey or hotkey #0 again.
On doing so your VCP will provide the necessary details regarding your flight plan to FSS, after which they will clear you as filed, give you an initial altitude and also the frequency for Departure, which of course you should contact asap after takeoff. Obviously this new feature is only available when your are at your departure airport.
Hope that helps