Unless something changed since 2018, the radio itself will not display the freqs (cc or vc). If the scanner is connected to @ProScan it will do the control channel. Not sure about the voice as my scanner here right now.
The frequencies can be viewed with logging software, such as Proscan and Arc536 PRO.
They are not displayed on the scanner.
3rd party Playback software can display this info in saved recordings also.
I use an old iPhone 4 connected by WiFi to my 536 to get more information. The Siren app for iPhone give more info than the Android version of Siren. But if a computer can be used then Unidens RH536 program also presents all info and connects using WiFi.