Sequence.importMGT() overwrites sequence instead of inserting

Hey everyone,

I'd like to write a script that INSERTS a MOGRT at the head of the active sequence. The documentation here states that the time parameter will insert the MOGRT at the specified time but when I use the function it only overwrites. Code for ref:

var seq = app.project.activeSequence;
var path = "filepath_to_MOGRT";
var time = "0";
var importMgrt = seq.importMGT(path, time, 0, 0);