Category and Blog widgets + "Add to Calendar" option

Hi,
I’m looking for somebody able to customize 2 widgets:

1- Category widget: I’ve so many categories and sub-categories, so I really need a sidebar widget that can show a list of categories capable to show sub-categories only when hover with the cursor, like the one used in the Templatic Demo here. The widget must be able to automatically displayed the categories based on the CPT I’m visiting. When I bought GeoTheme, long time ago, I was using the GT category list plugin, but GeoDirectory doesn’t have anything like that.
I’ve red somewhere that the next version of GD will come with a better category widget, but don’t know when it’ll be available to download.

2- Blog widget and page: I’m looking for a widget to display inside the Home page content area, with a magazine structure like the one in the attached pic (from Enfold Demo). Widget should have options to choose which blog category it will display (so one can insert multiple widgets for different categories).
On the other hand, I need customization for the Blog “all posts” page (actually my blog listing page doesn’t even show my author name, but a full text link instead). Similar CSS would be needed for the single post page.

I’m using the default Child theme: I fear to use other themes (like Avada or Enfold) cause I think I’d need to do constant modifications for every GD Framework AND specific Theme updates… I’d appreciate any suggestion from any experienced Enfold or Avada user.

3- “Add event to my Calendar”: this feature from Templatic is really cool and I’d like to have it implemented inside the Event detail page.

Thanks,
gianni