Hey @gladguy,
you don’t need to enable anything. However, the 32 GB is not the normal WASM heap (still 4GB), but stable memory which needs to be accessed by the system API.
If you’re programming in Rust, there are some libraries that help work with stable memory. AFAIK there’s none for Motokot at the moment:
- GitHub - dfinity/stable-structures: A collection of data structures for fearless canister upgrades.
- https://crates.io/crates/ic-stable-memory
Update: There’s a WiP project for a StableBTree in Motoko: ICDevs.org - Bounty 24 - StableBtree Mokoko - up to $10k (cc @sardariuss)