Subform, Tabs and Master form conditions

[Beeyen]

Good Day,

Let me try this one again; I have a master form with several Tabs and
Subforms. In the master form there is a field called Work Category (a combo
box) and in this field, among other listings I have rate, plans, co-pay and
accumulations. In one of my Tabs called Routing, one of my fields is called
Claims Monitoring

If rate, plans, co-pay or accumulation is selection in the Work Category
field of the Master form I would like to see the Claim Monitoring field
populated with which every the selection is, otherwise the field is
grayed-out.

Can this be done?

Thanks in advance