Are we able to stake rewards through the ZenCash wallet by chance?
You need to fulfill certain requirements for setup Secure Node.
https://securenodes.na.zensystem.io/aboutMust maintain a balance of at least 42 ZEN in a 'stake' transparent address
This address is in wallet on your local pc.
A payment administrator on a weekly basis reviews the earnings to ensure they were generated correctly and marks them to be paid. Coins are then transferred to a payment address and the payment is made. No funds are stored on the server. This process may be automated at a later time.
This payment address is same as stake address.
How to Build and Operate a ZenCash Secure Node Complete Guide
https://blockoperations.com/how-to-build-and-operate-a-zencash-secure-node/