On Sun, 21 Oct 2012 14:37:51 +0200, Sönke Ludwig wrote:

Where? At the point where renderer called "import" already added (and
assignment to a variable "cell" works well)

Think of the template like it is a separate module, it needs its own
list of imports. Just accessing the passed-in variables will work
regardless of imports, but as soon as something is to be referenced by
name, it must be imported first.

A possible place would be right at the beginning of the block:

extends layout

block content
   - import xyz;

Yes, its works! Thanks!