This idea is similar to http://feedback.xodo.com/forums/241992-suggest-a-new-feature/suggestions/17707363-text-search-function. Concentrate your votes there instead.
This feature already exists on the version of Xodo on Windows Store app. By any chance are you referring to Android or iOS instead?
Using mouse or touch to adjust the location of textboxes is pretty frustrating because I can't get it to place properly! For example if I want to fit a textbox right between 2 lines, it's a surgical operation because Xodo does not allow fine movements!
It's laughable that the application is so restrictive. I open my multiple windows in Adobe Reader since Xodo can't do it for me. I would really wish to use only Xodo though.