Many thanks for Sokolowski, Silver, Andertrack, Nicmare, Nick and many others! Thank you for your help and encouragement.

In ImpressPages 1.0.3 beta you can find new interesting features:

• internal linking (from "Insert/edit link");
• multiple widget layouts (as many as you need);
• new localization interface (translate front-end and back-end to any language);
• plugin installation (now you can develop your own plugins);
• enhanced security (against CSRF attacks).