                         <Input
                             ref         = 'assignment_add_input'
                             type        = 'text'
-                            placeholder = "Add assignment by folder name..."
+                            placeholder = "Add assignment by folder name (enter to see available folders)..."
                             value       = {@state.add_search}
                             buttonAfter = {@assignment_add_search_button()}
                             onChange    = {=>@setState(add_select:undefined, add_search:@refs.assignment_add_input.getValue())}

{Alert, Button, ButtonToolbar, ButtonGroup, Input, Row, Col,
    Panel, Popover, TabbedArea, TabPane, Well} = require('react-bootstrap')

{ActivityDisplay, CloseX, DateTimePicker, ErrorDisplay, Help, Icon, LabeledRow, Loading, MarkdownInput,
    SaveButton, SearchInput, SelectorInput, TextInput, TimeAgo, Tip} = require('r_misc')

{User} = require('users')

        if @state.add_searching # already searching
            return
        search = @state.add_search.trim()
        #if search.length == 0
        #    @setState(err:undefined, add_select:undefined)
        #    return
        @setState(add_searching:true, add_select:undefined)
        add_search = @state.add_search
        salvus_client.find_directories
