File Chooser for Loading.
Text Load Page is used for loading, merging, and importing data through the text-area.
I have just added option of loading a text from a file to the text-area on the Text Load Page with an input file-chooser. (Thanks to the article: https://www.html5rocks.com/en/tutorials/file/dndfiles/ )
On the Text Load Page press the key F and then ENTER to start the file-chooser. Note that the file is loaded to the text-area and you then still have an option to accept it by pressing ENTER or to change your mind.