viewof options = Inputs.form({
ttypes: Inputs.checkbox(["LRG", "ELG", "QSO"], {label: "Target types", value: ["LRG","ELG","QSO"]}),
ZMAGmax: Inputs.range([17, 25], {label: "Max ZMAG", step: 0.1, value: 25}),
GRmin: Inputs.range([-1, 4], {label: "Min G-R", step: 0.1, value: -1}),
region: Inputs.radio(["North", "South", "All"], {label: "Footprint regions", value: "All"}),
})