How can I pass more than one enum to a method that receives only one?

I'm wondering if the following is possible:

The method Regex.Match can receive an enum, so I can specify:

RegexOptions.IgnoreCase
RegexOptions.IgnorePatternWhiteSpace
RegexOptions.Multiline

What if I need to specify more than just one? (eg. I want my regex to be Multiline and I want it to ignore the pattern whitespace).

Could I use | operator like in C/C++?