Popping up on selected text only with modifiers?! Rated 3 out of 5 stars

Is there any possibility to have Auto Context not popping up on text selection unless holding CTRL, Shift, Alt or a combination of these? Maybe I'm doing something wrong? I don't know, because the explanation in modifier settings menu is non-understandable, false English.

To be found in:

Global > On Selection > Show: Auto Context Popup Menu > Modifiers... (Enable selection modifiers on text selection):

CTRL [ ] Alt [ ] Shift [ ]
(whereas the option for ticking the Alt checkbox for some reason is greyed out)

"If modifier in unchecked and due text selection is pressed, after selection finishing (left mouse button was released) the Auto Context popup will be not showed"

What the heck is that supposed to mean?