I can't seem to replace a piece of text

I haven't used twine for a good 3-4 months and I loaded it up to complete an almost finished project I've been working on a while back, but something really funny keeps happening to me, I can't seem to use replace, I press it nothing happens, I want to change my link: to link-repeat: and I can't, it's kinda irritating

P.s: I'm using the online version of twine 2.0 with story format harlowe 1.23

Edit:Ya replace would be pretty useful as I'm considering a complete revamp with over 100 replacements doing it manually is ridiculous