Hi, is it possible to set Krusader to show items count in folder like f.e. gnome nautilus? I like Krusader file manager but I miss this feature.

What do you mean with "items count"? The number of files+folders in the current directory is shown below the panels.

I want to have column which shows how many items (files and folders) are stored in folder. Default Ubuntu file manager nautilus has this option. I miss it in Krusader.

Ah, ok. This is not implemented in Krusader and would need some work. Maybe copying the code from Dolphin is an option.
Please create a report about it here: https://bugs.kde.org/enter_bug.cgi?product=krusader