Could you, please, reallow cascade semi-protection,

Allowing cascading for semi-protection is disabled by default because it would effectively allow any autoconfirmed user to semi-protect any page by transcluding it on another cascade semi-protected page. However, it can be enabled with $wgCascadingRestrictionLevels if that is the community consensus.

or, even better, allow different protection levels for root page and its cascade transclusions? Thank you.

Generally it is not possible to have multiple protections with different options on a page (it is also impossible to e.g. make a page permanently semi-protected and add an expiring full protection, see T41038: Full protection expiry should not affect semi-protection).

Note that in this case, you can work around this by fully protecting main page, and then creating another page that transcludes the main page and cascade semi-protecting that. :)

Thank you.

In T195249#4222907, @matmarex wrote:

Note that in this case, you can work around this by fully protecting main page, and then creating another page that transcludes the main page and cascade semi-protecting that. :)

I thought about this option, of course, before I filed this task. I do not sure the comunity will agree - it's too complicated, in all sences.

Allowing cascading for semi-protection is disabled by default because it would effectively allow any autoconfirmed user to semi-protect any page by transcluding it on another cascade semi-protected page. However, it can be enabled with $wgCascadingRestrictionLevels if that is the community consensus.

For all pages, not just the main page?

... it is not possible to have multiple protections ...

So can it be implemented for this task?
Thanks again.