There is an InternetExplorerOptions class for IE options . See the source , which has the AddAdditionalCapability method. However, for your ignoreZoomSetting class already provided a property called IgnoreZoomLevel , so you do not need to set the capabilities.
On the other hand, InternetExplorerDriver has a constructor for both IEDriver and InternetExplorerOptions. A source
public InternetExplorerDriver(string internetExplorerDriverServerDirectory, InternetExplorerOptions options)
Here's how you use it:
var options = new InternetExplorerOptions { EnableNativeEvents = true,
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