Global Action - We requested a Global action where one field (NextSteps) from Opportunity is to be updated.  Action should contain two fields

Next Step

relate to opportunity with search.

idea is that the AE who is out and about can use the global action on mobile without first having to search for the opp.  I am being told this is difficult to do.  I am sure that there are already such components or actions out there just not sure where to look or have them look.

Any ideas?