|selected = option tocurrent, defunct orfuture as appropriate to expand the section relevant to the article, e.g. {{UK TOCs|state=collapsed|selected=defunct}} (navbar collapsed, but reveals with the Defunct panel already expanded). The default iscurrent.This template'sinitial visibility currently defaults toautocollapse, meaning that if there is another collapsible item on the page (anavbox, sidebar, ortable with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the|state=parameter may be used:
{{Train operating companies in the United Kingdom|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.{{Train operating companies in the United Kingdom|state=expanded}} will show the template expanded, i.e. fully visible.