How to Move Auto Page Numbering from left to different corner of the page using Indesign script?

Question

I am trying to move Master Spread auto page numbering to right corner of the page using Indesign Extendscript. Unable to achieve it yet. 
Is there a way we can select the text frame of content type "SpecialCharacters.AUTO_PAGE_NUMBER"? 
Here is what i have tried so far -

for (var i = 0; i < app.activeDocument.masterSpreads.length; i++) {
    var page = app.activeDocument.masterSpreads[i].pages[0];
    for (var j = 0; j < page.textFrames.length; j++) {
        var textFrame = page.textFrames[j];

alert(page.name + "*****" + textFrame.parentPage.name);
        
        if (textFrame.parentPage.name === page.name) {
            textFrame.paragraphs.everyItem().justification = Justification.RIGHT_ALIGN;
        }
    }
}

The above code is aligning all the textframes to right. I am interested in finding only the Auto page number text frame. Appreciate any insight and help on this! Thanks
 
<Title renamed by moderator>

Laubender · Accepted Answer

Hi @VenkatMP ,just a hint: you could find the paragraph of the auto page number if you are using a GREP Find action. Also per script.The found text's paragraphs[0] is that paragraph.The found text's parentTextFrames[0] is the text frame the special character is positioned. Regards,Uwe Laubender( Adobe Community Expert )

rob day · Answer

Hi @VenkatMP , In case someone else is looking for the grep example, this would get the document’s current page number characters as an array:

//the document‘s current page number characters
var pn = getPageNumbers()
$.writeln(pn)

/**
* gets the active document’s auto page numbers as an array 
* @ return the array 
*/
function getPageNumbers(){
    app.findTextPreferences = app.changeTextPreferences = app.findChangeTextOptions = null;
    app.findChangeTextOptions.properties = { 
        includeHiddenLayers:true, 
        includeLockedLayersForFind:true, 
        includeLockedStoriesForFind:true, 
        includeMasterPages:true} 
    app.findTextPreferences.findWhat = "^#";
    return app.activeDocument.findText()
}

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