Moves all Amazon saved for later items on the cart page to a private Wish List named "Saved For Later". It will only moves visible items. You might want to scroll first to make more items visible. To use paste code in developer console (Ctrl+Shift+J or Cmd+Opt+J in Chrome) then press enter.

moveAmazonSavedItemsToWishList.js

function moveSavedItemsToWishList() {
	var query = document.querySelectorAll("#sc-saved-cart input[value='Move to Wish List']")
	if (query.length) {
		query[0].click();
		console.log("after move item click")
		var wl = document.querySelectorAll("a[aria-label='Saved For Later (Private,item)']");
		if (wl.length) {
			wl[0].click();
		}
		console.log("after wishlist click")
	}
	if (query.length > 1) {
		
		setTimeout(moveSavedItemsToWishList,5000);
	}
	else {
		console.log('Finished');
	}
}
moveSavedItemsToWishList();