when i choose for example 'for sale' category and on that page the map shows all categories,

can i change the radius ONLY choosen category items on map which im already on the category page?.

like:

i clicked on home page for sale category

i want the map shows nearby ONLY for sale category items, laptops, computers... NOT real estate, community etc...

how? or any trick?

@miyedos
This should already work.
If you look into file:
oc-content/plugins/radius_search/listings_map.php

You have there:
  if(osc_is_search_page()) {
    ...
    $cat = osc_search_category_id();

    ...
    if($cat[0] <> '' && $cat[0] <> 0) { $radiusSearch->addCategory($cat[0]); }

In this part you can try to print result if category ID is correctly estimated by:
print_r($cat);
print_r($cat[0]);


thanks. working on it now