The tySpliner object can be used to non-destructively combine spline objects together.
Object list: the list of spline objects that will be combined together.
Hide after adding: controls whether objects will be hidden in the scene after adding them to the listbox.
Show icon: controls whether the tySpliner icon is displayed in the viewport.
Icon size: controls the size of the tySpliner icon.
Show name: displays the name of the tySpliner next to its icon in the viewport.