[Therion] Position of map on the paper in export

[Torsten Schnitter]

Hi folks

Is there any possibility to position the map on a different point on the output
paper?
Or can you resize the output in a way that not so many white spaces around the
map is print?

I'll try to describe my problem:

I'm using:
export map -fmt pdf -proj plan ... -layout ...

In the layout:
size 22.2 18 cm
page-grid on

I get a paper where a lot of white space is around the map.
If I switch on the page-grid I can see the map printed on 24 pages (3 rows and 8
pages each).
But if the map would be a bit more in the lower left corner it only would be 2
rows and 7 pages, so in total just 14 pages.

Thanks for your help.
Torsten