HELP! Upgraded to X pro.. regretting this move

I was using Acrobat 8 pro and was able to move around pretty well. I chose to upgrade to X because I was told I could combine multiple files of the same name from different folders into seperate combined PDF's. however I was also able to batrch process watermarks on my files by running this Javascript:

this.addWatermarkFromText({ cText: this.documentFileName.replace(/\.pdf$/i,""), cFont: "Calibri", nFontSize: 12,

    nHorizAlign: app.constants.align.right, nVertAlign: app.constants.align.top, nHorizValue: -33 , nVertValue: -30});

Now I cannot do this to all of the files in a folder (Or at least I cannot figure out how for the life of me) can someone please help?

In 8 I could create a javascript with the script above, select all of the files in a folder and then run the script which would place the filename of the PDF in the upper right corner as a watermark. I need to be able to do this in X Pro.

Thanks in advance!