Joget Form Builder allows you to dynamically changes the options/selections of a select box/radio button/radio based on other form's field value.
For the example shown below, the "Category" select box is based on what is chosen in the field "Type of Leave".
Figure 1: Category dynamically changes its options based on Type of Leave
In the "Type of Leave" properties, you will just need to configure the Options normally.
Figure 2: Creating a selectbox
In "Category" properties, we will need to group the options and tie it to the former element, "type".
Figure 3: Creating a selectbox with dynamic options
NOTE: This feature is not released yet.