There is a search form there and I used that method for one of my DBs.
I do not have the experience to write this for you.
There is a SearchForRecord macro, but that appears to only work on tables, forms, reports and queries. When I tried with your Client_Details form, it complained it was not open, so obviously could not see it within the subform control.
You need to bite the bullet and learn VBA else find a site that uses macroes extensively, as hardly anyone here uses them as far as I know.
Also you will need to use the main form control sect as that is what you are trying to find, after seeing your form.
thanks to all senior membes who also helped me. i have also learned about using the vb in code and found two vb codes to make app better.. Thanks you ALL