How to use NLA in blend4web

Hello once again!
Sorry for the delay

Unfortunately shape key animations via keyframes (NLA or just object actions) are not yet supported in blend4web.
But you can animate shape keys procedurally:
1) code snippet for shape keys API methods
2) API module time docs

P.S.

Maybe I can send a email to you and send the files to you, if that is convenient, dear Khomyakov.

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