protected boolean isEditFieldAllowed() {
		return !isEditingField();
	}
Returns whether or not the base type of the component at the
selected index is editable. If the base type is a composite
then it is editable.
Also, if there isn't a selection then it isn't allowed.
 @return true if edit allowed, else false
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeEditorModel.java