If point features are on one end of the page and polygons in the other, open up your geojson in the Notepad, and then cut-paste the polygons feature to a separate text file.
Initial file:
var initial = [{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [[
[-104.05, 48.99],
[-97.22, 48.98],
[-96.58, 45.94],
[-104.03, 45.94],
[-104.05, 48.99]
]]
}
}, {
"type": "Point",
"geometry": {
"type": "Point",
"coordinates": [-104.99404, 39.75621]
}
}];
Pulling out the polygon:
var polygon = [{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [[
[-104.05, 48.99],
[-97.22, 48.98],
[-96.58, 45.94],
[-104.03, 45.94],
[-104.05, 48.99]
]]
}
}];
Afterwards you'd save it as another geojson file and add it.