I am unable to delete the child form. Is that possible to delete a child form?
Yes, just click the delete button. However, a child form can be deleted only if it it the last one in the hierarchy.
What if the child form is not last in the hierarchy?
That is not possible since that would break the hierarchy structure. Forms hierarchy is like creating subfolders on your computer, you cannot delete a parent folder without deleting all the subfolders contained in it.
However, you can download each individual form and re-arrange them in another project if that works for you →