I have a couple of institutional proxies that I use (through Zotero Connector) to access papers behind paywalls.

One inconvenience though is that sometimes a paper is not available through one proxy, so I would like to try a different one. But Zotero hides the "Reload through Proxy" option when the page is already open using one proxy.

Since the Connector probably stores the original URL somewhere, I think it would be nice to still show the option to "Reload through Proxy", so that one can easily try different proxies until one works.