/// <summary>Adds verbs for which there is a text description within the given range</summary>
private TreeNode AddKeyVerbs(int first, int last, string folderName, TreeNodeCollection within = null)
{
if (within == null)
{
within = TV.Nodes;
}
TreeNode folder = within.Add(Strings.Item(folderName));
foreach (Codes verb in Enum.GetValues(typeof(Codes)))
{
if (verb != Codes.None && (int)verb >= first && (int)verb <= last && Strings.Exists("Verb_" + verb))
{
AddAction(folder, Verb.Find(verb));
}
}
return(folder);
}