These commands are displayed only if a text layer is present.
In the Text to Selection drop-down list, the commands are identical to those of the Transparency sub-menu (in fact, the text is formed of areas of different transparency):
Text to Selection: 7.39 – „Alfa do výběru“
Add to Selection: 7.40 – „Přidat k výběru“
Subtract from Selection: 7.41 – „Ubrat z výběru“
Intersect with Selection: 7.42 – „Průnik s výběrem“