Trying to fix some nodes in the dependency map

Hej there,

I’m trying to figure out, how to fix some (namely: five) of the nodes (nmely: 1200) in the dependency map to x-y coordinates and let all the other nodes be distributed by the physics model.

I worked with vis.js before, but back then had full control over the drawing process in vis.js and could manipulate the coordinates of selected nodes during the drwaing process. Here, one has only the configuration item

 $config['network_map_vis_options'] 

in config.php. There the option

"nodes":{"fixed":{}}

is global and fixes all the nodes in the map. I couldn’t find a way to apply the “fixed” to only a defined group of nodes, let alone positioning the members of the group to individual spots on the screen.

Is there a way to select a defined group of nodes and fix them to positions in the canvas?

Thanks,

Christian