UPDATE: No more help needed. :slightly_smiling_face: My head is smoking trying to get the basics just for one little task. I want to unhide stuff in HTML code (the ship package IDs and such) but there doesn't seem to be a browser addon for Firefox. I'm using a replacer addon but I will need RegEx syntax for that. The addon asks for an input and and output string for a replacement operation. Can you help me with that? I want to replace <input class="js-pledge-id" value="12766489" type="hidden"> to <input class="js-pledge-id" value="12766489" type="button"> independently of what number is in there or how long it is. Basically a string replacement that ignores a segment in-between.