Qutescoop is a very useful tool when it comes to ATC scheduling.
Also statsim as mentioned previously.
Unfortunately, VATSIM seems to have two or more different ATC scheduling systems.
What I like to do is to use google calendard to have online atc visualised.
I open Qutescoop and statsim to get scheduled ATC times:
Today for example, I’ll fly CYDF to LFBZ, as I know there will be ATC online in LFBB FIR between 2000 and 2200z.
I only fly by ATC scheduling and therefore I’d love to see more ATC filing their sessions.
Not only to reserve their ATC station but even more so to attract more pilots.
By the time the PMDG 777 is out, I want to do more long range flying into the US, but there’s so little ATC scheduling on statim for the US (except Boston).
What comes in really handy on statism is the very quick search function. Go to: ATC bookings | StatSim and type in “CTR” and you’ll have all the Center positions at one glance.
Qutescoop on the other hand is great to determine where trainings and exams take place.
Even if trainings and exams are sometimes scheduled for 2hrs, they never take longer than 1,5h.
Login codes can also be a showstopper sometimes… If you search for UKBV_CTR or EGGX_FSS, you won’t find anything as they are logged in as UKR_CTR and NAT_FSS instead.
Also, you have to note which station is responsible for which airports. EDDP_APP for example is not only responsible for EDDP, but also for EDDC and EDDE. This information isn’t provided in the ATC scheduling.
'cause you have it at one place and available every time you fly to or from an airport. 