Add 'open file' button

[tudortimi]

It would be great if you could add an 'open file' button, together with 'save', to allow editing of files directly. This way, when working with multiple wave sets, users wouldn't need to draw one set, save it, clear the editor window and drag another file.

[drom]

@tudortimi good idea, and is not difficult to implement.

[gladwig2]

Is the load function working? I see an option to load a json file on the web version, but It does not seem to do anything. The PC version (1.4.2) does not have the load option.

BTW, I think the WISWG/Edit is a novel and very effective approach! Thanks.

[jeff830107]

Same as @gladwig2 .
The load function is not doing anything when I click the 'load' option.