Access Form Drop down Option

Vianney1200 First, we need to be sure the terms we use are the standard terms so that we are able to communicate effectively. There is, for example, no such thing as a "dropdown form". "Dropdown" usually refers to one control type, formally called a "Combo Box". Is this what you need or want?

We create drop downs to present users with a Closed Domain of values from which one can be chosen.

If this isn't what you meant by dropdown form" please explain in more detail.