Does appinventor have undo and redo when i made my projects?

does appinventor have endo and redo when i made my projects?
does appinvator have copy and paste of a layout or button and …?

The right click menu on a blank spot in the Blocks Editor workspace has undo.
Nothing in the Designer.

hi,thanks.does appinvator have copy and paste of a layout or button and …?
why dont release a software then i use offline as scratch software?

http://bayanbox.ir/info/2377726319483196969/tennis1

i delete 20 textbox in designer but dont undo and made 20textbox again!!! appinventor should asked me “are you sure delete this objects?”


i made crossword as see below:

http://bayanbox.ir/info/6246949061177089004/KermanJadval5
can i make objects programatically?

That crossword puzzle must have required much patience, if you dragged in text boxes.

Some people use the Web Viewer and JavaScript for dynamic object creation at run time.

I have used a Canvas and drawn my own grid on it, translating rows and columns to pixels back and forth. ... Numbrix - Google Docs

Regarding warning people before deleting components, that's a fine idea. In the meantime, take frequent .aia file exports and store them safely in a version control system (I like Dropbox free).

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