Ebay putting old items on sale

[brianfarm6767]

Hoping someone can give me a way to put old inventory on sale on my ebay store. I have about 7000 listings and maybe 2000 or so are 6 months old or older. I would like to run discounts on these items to begin clearing them out. I have not found a way to put in a filter on a markdown promotion that goes off of days on site. I am hoping there is a way to do it beyond going through each item individually.

[Ken735i]

Bulk item editor may be able to add the ten percent reduction over time. Not sure of anything else available

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