A minimal call:

VCSAG_SET_ENVS ($resource_name);

Setting the category ID:

VCSAG_SET_ENVS ($resource_name, $category_ID);
VCSAG_SET_ENVS ($resource_name, 1062);

Overriding the script name:

VCSAG_SET_ENVS ($resource_name, $script_name);
VCSAG_SET_ENVS ($resource_name, "monitor");

Setting the category ID and overriding the script name:

VCSAG_SET_ENVS ($resource_name, $script_name, $category_id);
VCSAG_SET_ENVS ($resource_name, "monitor", 1062);

Or,

VCSAG_SET_ENVS ($resource_name, $category_id, $script_name);
VCSAG_SET_ENVS ($resource_name, 1062, "monitor");