Can you even still get v12?? v15 is the most recent. I don't trade through eSignal. When I started with them they didn't have charts or broker links. Back then we used eSignal for data only and other 3rd party trading apps. I still do that. I use Rithmic for ES DOM trading and Fidelity ATP for other. I've used eSignal for so long, I'm grandfathered at a better rate. eSig told me that if I ever did not renew, I'd lose that rate and wouldn't be able to get it again if I came back to them.
If you are paying for esignal data then try the front end. v12 is the latest version 10.6 was the old version it has been completly rewritten and is very nice. Your broker probably offers data and charting with DOM for less than esignal or metastock charge.
Fidelity ATP doesn't offer futures trading. I'm looking to ditch eSignal. I think I can change things around and get along without it. eSig v10.6 is required to work with MetaStock v11. Later versions of eSig don't work.
You could set up a new account/username on windows and install esignal v12 to that to try it out. Take a look at www.activetick.com for $20 a month. Edit: No CME futures on activetick http://www.activetick.com/activetick/contents/ActiveTickPlatformDataCoverage.aspx
https://www.barcharttrader.com/ barchart trader is $129 plus $40 emini exchange fee a month for CME, ES and NQ.
http://www.sierrachart.com/index.php?page=doc/FuturesData.php Sierrachart is $24 or $33 a month plus data but if you do not have a funded futures account they charge the full exchange fee of $42 for CME. Their pricing is very complicated. EDIT: Sierrachart is $24 a month plus $35 for realtime futures data plus $42 CME exchange fee.
Plus $55 a month for www.kinetick.com realtime data if you do not have a futures account at ninjatrader brokerage plus higher exchange fee.
https://www.cme-equotes.com/packages/pricing CME have their own charting/DOM package. $115 plus $40 a month exchange fee.