Here are two documents to help with your APCMs during lockdown:
Holding APMs and APCMs during Covid-19 restrictions (updated March 2021) [PDF]
Bishop's instrument: Holding APCMs and APMs remotely [PDF]
Bishop's Instrument: APCM and churchwarden election dates 2021 [PDF]
Here's where you can download the forms and notices you need for your APCMs.
You can see more about the new Representation Rules (effective January 2020) here.