> custom widget can only accept one input parameter.
This is correct.
> Is there a way to walk around this issue?
Yes. Say you want to pass two object of entities Foo and Bar. Create a new entity FooBar and associate it 1 to 1 with both Foo and Bar (or many to 1). Then pass the FooBar object to a microflow and retrieve the associated objects Foo and Bar. This is exactly how the drag and drop widget works.
-Andrej
Thanks for your quick reply.