Is there any way to eliminate leveraged ETFs (Long and Short) in an EasyScan? 

There is not a built in way of filtering out leveraged ETFs. You would need to find a list of either unleveraged or leveraged ETFs on the internet and copy that list into a Personal WatchList.

Copying Symbols to Personal WatchLists

If the list was of unleveraged ETFs, you can just use that Personal WatchList as the List to Scan in an EasyScan.

Building a Scan with Multiple Conditions

If the list was of leveraged ETFs, you will need to copy all of the symbols in the US Exchange Traded Funds WatchList to its own Personal WatchList.

Then go into the Personal WatchList containing all of the leveraged ETFs to Flag All Symbols in List. Then switch back to the copy of the US Exchange Traded Funds WatchList to Remove Flagged Symbols from List.

Flagging Symbols

Once the flagged symbols from the leveraged ETFs WatchList are removed, the resulting US Exchange Traded Funds Personal WatchList you created should only contain unleveraged ETFs (because we manually removed the leveraged ETFs). You would then use this Personal WatchList as the List to Scan in the EasyScan.

I was afraid of that. Thanks.

Is it still not possible to filter out leveraged ETFs?

No, there is not a way to filter. You would still need to do this manually.