How can i make player send res to other players but dont have access to the marketplace

Age of Empires II: DE II - Discussion
1

I am making a scenario. I want players can send resources to other player but can not sell or buy resources from market. How i can make it ?

2

maybe trigger sending resources by clicking on specific buildings. similar effect happens already in some of the FE Campaigns where you can recruit units for gold (e.g, Dracula 5th mission)

3

I thouht that but not working well for my scenario.