[JW Lua] Creating a new Expression Category

[Robert Wildling]

Hi,

I am looking for a way to create a new Expression Category withe the name
of "unused" (the intention is to move all unused textExprDefs and
ShaeexprDefs to that category).

Starting out, I thought, this can only be done via selecting a specific
category and saving it using "SaveAs" and a new "ItemNo", like this:

``[lua]
local dynCat = finale.FCCategoryDef()
if dynCat:Load(2) then
    -- get the category name
    local catName = finale.FCString()
    dynCat:GetName(catName)

    -- save it anew
    dynCat:SaveNew()

     -- shows tha a new item number
    -- was generated (65535 ??? looks like an error...)
    print(dynCat:GetItemNo())
end
``

But even though the category is assigned a new number (is 65535 an
indicator for an error here? look strange), no new category was created.
And if the ItemNo of the original category was changed, a second
run-through shouldn't work, since Load(2) shouldn't find anything at that
position... but it does...

I am very confused... any hints and/or help would be much appreciated!
Thanks!
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