Devart Forums

I know, that it is possible to run selected code.
But I can't find this setting...

Please, help.

Select code and right-click on it and you'll see the command in the popup menu.

to my mind, as something can be done to default setting,
that only selected code will run from page

There is a shortcut for this command. You can see it in popup menu. In the next version we'll replace this shortcut by simple one.
But even now you can assign any shortcut to this command from Tools->Options->Environment->Keyboard.