Is your feature request related to a problem? Please describe.

From the documentation, it seems that workflow has the ability to specify memo notes (additional metadata) that could be used later in searches. I see in the PHP SDK the ability to populate a memo when workflow starts, but I don't see the ability to populate a memo during workflow execution.

I have an order creation workflow where I have the order number appear. I would like to add it to the memo and then use it when investigating incidents.

Maybe there's some other way?

Describe the solution you'd like

I'd like something like this:

Workflow::addMemo('key', 'value');

Additional context

Memo documentation