If I could display the entire contents of that category at once, then I could use my browser's search function.

Don't you have enough "Pro" people paying to afford a better mobile app (that can edit, quote correctly, add images) I use the mobile version of the website using a web browser from my smartphone - that does allow for edits, and I even think images can be included too.

I found out that it was due to the web browser I was using. 

Question:  So why the mobile app when you already have essentially the same thing through a web browser but with the added functionality of multiple tabs/pages to manage at once? 

I can't do it in the Web browser or on the app.

Also, you could always login through your phone's regular browser.

Yeah, I've had this website do that to me recently a well.Try using your browser's <Back> button, refresh that page after it finishes loading, then try replying again.

Try using the web browser.

First of all, the browser matters.

Just tried it, but my browser security denied it saying tested site and found security risks.