fm-group-select sample to add groups to uploads

addGroupSnippit.js

if ($('.groupSelectInputs').length > 0 ){
    
    // declares the group string
    var groupsString = "";
    
     // Loops through all of the select inputs
    $.each($('.groupSelectInputs'), function(i){
        groupsString = groupsString == "" ? this.value : groupsString +','+ this.value;
    });
    
    // Convert the groups string to a readable array
    groupsString = groupsString.split(','); 
    // Inserts the groups into the hidden input which is referenced when uploading
    $('#groupHolder').val(groupsString);
    
}

fm-group-select.html

<!-- Hidden input field to hold the group list -->
<input type="input" class="fmInput required" id="groupHolder" name="groupHolder" title="Select Group*" value="" />

<br />
<!-- Select 1 -->
<fm:Form_Select name="category" class="fmSelect groupSelectInputs">
    <option>-- Select a category --</option>
    <fm:GroupList
        moderationStatus="{%var:moderationGroups}"
        parentGroup="11223"
        sort="{%gallery:groupSort}"
    >
        <fm:Loop>
            <fm:Form_Option value="{$$group.id}" label="{$$group.name}" />
        </fm:Loop>
    </fm:GroupList>
</fm:Form_Select>

<!-- Select 2 -->
<fm:Form_Select name="category" class="fmSelect groupSelectInputs">
    <option>-- Select a category --</option>
    <fm:GroupList
        moderationStatus="{%var:moderationGroups}"
        parentGroup="11223"
        sort="{%gallery:groupSort}"
    >
        <fm:Loop>
            <fm:Form_Option value="{$$group.id}" label="{$$group.name}" />
        </fm:Loop>
    </fm:GroupList>
</fm:Form_Select>