Regex Queries item in feed list

[nikystone]

As online documentation:
"Regex Queries- Article list offers search box to quickly filter displayed articles. If you want to have your search persistent forever, you can create what we call Regex query. You can right click Regex queries item in feed list and following dialog will show:..... ".

I can't find the REGEX QUERIES ITEM to right click to open the dialog box, can you help me with this function ?
Thank you.

[martinrotter]

[nikystone]

and how can i write a regex with flag /i in the text field? i can't have results...
for example if i type microsoft|apple in regex field i cant find articles with "Microsoft" word.