var layoutInfo = {
startTab: "none",
startNavTab: "tree-tab",
showTree: true,
treeLayout: ""
}
// A "ghost" layer which offsets other layers in the tree
addNode("blank", {
layerShown: "ghost",
},
)
addLayer("tree-tab", {
tabFormat: [
["tree", [["p", "sp", "f"]]],
"blank",
["tree", [["i"]]]
],
previousTab: "",
leftTab: true,
})