Joget Form Builder allows you to dynamically change the options/selections of a select box/radio button/radio based on another form's fields value.
Tips
Dynamic Cascading Drop-Down List is also supported in Datalist Filters too.
Configure "Options" in the Type of Leave properties.
In the Category properties, group the options and tie them to the form element "type".
UI
Figure 1: Shows Category with no options.
Figure 2: Shows the categories of paid leave.
Figure 3: Shows the categories of paid and unpaid leave.
Figure 3: Shows all the categories as all types of leave is selected.