Thread:TheRealPella/@comment-26828130-20151207014111

It could be totally useless, but maybe..... I thought i'd simplify, or at least shorten, the way to add if the use of (parts of) a train is optional or required (in infobox train/wagon/trainset/etc..) So i've made Template:Req (English doc included) I know it isn't "fool-proof", as wrong parameters won't give an error message, but just the (empty) parentheses

A honest opinion please 