Hello Anatoliy Gerasin,
Thank you for your interest in Sitefinity 4.0
What you are looking for in questions 1 and 2 is not yet available in Sitefinity 4.0. The .aspx extension will be available once we have the UrlRewrite module for 4.0.
Can you please clarify what you mean in question 3. We do not yet have a Newsletter module. We do have a News module which lets you create news and publish them on your site. You can edit the template of how news items are displayed on your news pages. Is this what you are looking for?
4) You can insert an image gallery control to a page and then from its setting set the presentation mode to be images and light boxes. Then images displayed from the gallery will appear as thumbnails and when they are clicked a lightbox will open to display the full size image.
6) You have to create a custom module which will manage your data. Then you can move your data to the database and create user interface to manage the data. You can take a look at this tutorial
on how to create a custom module.
7) When you create a blog a RSS feed is automatically generated for your blog. Then when you publish blog posts in the blog they automatically populate the RSS feed. Can you please let us know the steps you took to create the feed and set it up, so that we can try to reproduce this behavior on our side?
the Telerik team
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