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To automate the one-by-one make collide you could do this. Select your particle, then all the objects you want it to collide with and run this code:

Code:

{
	string $sSel[] = `ls -sl`;
	int $i;

	for($i = 1; $i < size($sSel); $i++)
	{
		collision -r 1 -f 0  $sSel[$i];
		connectDynamic -c $sSel[$i] $sSel[0];
	}
}

As far as editing the collision attributes you could first run this command:

Code:

select -r `ls -typ geoConnector`;

and then open up the attribute spread sheet and edit the values...