I use the Engineering Preset Manager. It is easy to use and stores your presets from one game to the next. You can also create multiple profiles, such as a profile designed specifically for missile ships, and load your game up with them already set. Personally, I have used it extensively when playing as Engineer. It worked fine with 1.66 and I believe it still works with 1.70. All the information and files are on the wiki. Click the link below to take you there.
If you need any other help, or advice on setting up presets, then feel free to ask. There are a lot of experienced engineers on here with different ideas, tips and tricks.