Managing and deploying updates via Configuration Manager
Assuming you want to configure your MWs for the Wednesday of the week following patch Tuesday (thus the second Wednesday after Patch Tuesday), there is no way to directly this with a recurring pattern in ConfigMgr as MWs are configured relative to the beginning of the month. There is a UserVoice item for this so upvote that if this is critical for your environment.
You can use a script though to configure individual maintenance windows for each month using your criteria. A quick web search (https://www.bing.com/search?q=maintenance+window+patch+tuesday+script&cvid=3484027f4ada4d1ba8758fafb8d866fe&pglt=43&FORM=ANNAB1&PC=W000) will get you lots of hits for this.