classInstancePane.js
function (subject) {
    var kb = UI.store
    var n = kb.each(
      undefined, ns.rdf('type'), subject).length
    if (n > 0) return 'List (' + n + ')' // Show how many in hover text
    return null // Suppress pane otherwise
  }
function (subject) {
    var kb = UI.store
    var n = kb.each(
      undefined, ns.rdf('type'), subject).length
    if (n > 0) return 'List (' + n + ')' // Show how many in hover text
    return null // Suppress pane otherwise
  }
Create a new folder in a Solid system,