Set default folder location for Save As and Save a Copy

Can I set a default folder to show when the Save As or Save a Copy dialog box opens?
It currently defaults to the working directory of the open file. I want to change it to open else where.

I can trigger the Save option - assigning a macro to Tools > Customise > Events > Save Document, and this works.
However, nothing seems to work when I assign it to Tools > Customise > Events > Save Document AS

I’m working in Windows 10 environment

If you are already agreeing to a macro, perhaps just create a macro to accomplish the entire save? If the Save As path is a regular thing, then you could use something like this harvested by Gemini–and checked:

Sub SaveAsExample

    Dim oDoc As Object
    Dim sFilePath As String
    Dim oArgs(0) As New com.sun.star.beans.PropertyValue

    ' Get the current document
    oDoc = ThisComponent

    ' Define the desired file path and name
    ' IMPORTANT: Use 'file:///' for local paths.
    ' Adjust the path and filename as needed.
    sFilePath = "file:///C:/Users/Admin/Documents/MySavedCalcDocument.ods" ' Example path for Windows
    ' For Linux/macOS, it might look like: "file:///home/YourUser/Documents/MySavedCalcDocument.ods"

    ' Set the file type (optional, but good practice)
    ' This example saves as an ODS (OpenDocument Spreadsheet)
    ' You can find other filter names in LibreOffice documentation or by
    ' inspecting the "Save As" dialog's filter options.
    oArgs(0).Name = "FilterName"
    'oArgs(0).Value = "Calc MS Excel 2007 XML" ' Example for .xlsx
    oArgs(0).Value = "calc8"

    ' Perform the Save As operation
    oDoc.storeAsURL sFilePath, oArgs()

End Sub

Note that if you change the file type for the filter, you still have to change the extension to .xlsx or whatever. I’m not sure that in this scenario setting the filter is even necessary, but I do a lot of CSV saves, and there it is.

I already have the code to initiate the default folder and file name to save to. The problem is if the user clicks the File menu > Save As or Save a Copy I cannot get it to run my macro.
I thought I could use the Events under Tools > Customise, but when I assign the macro to “Save Document As” or “Storing or exporting copy of document”, it doesn’t use the file path in the macro I’ve assigned. Which is virtually identical to want you have provided.