Which statement correctly explains the aspect “Literal versus transferred force” in the example “لَيْتَ / هَلْ / لَوْ”?

Inshāʾ and Tamannī: Requests, Wishing, Exhortation, and Reproach

• Wishing versus exhortation — Would that / Why not (do it)?
• Requesting and non-requesting inshāʾ — Requesting and non-requesting inshāʾ.
• Grammatical form of layta — Would that youth returned.
• Literal versus transferred force — Would that / whether / if.