just found. This idea has already been set out by luona.dev:
A useful development of this feature, especially in this new context, is the ability to choose whether the injected prompt is executed directly or is only used to partially fill the prompt with pre-made texts. To provide illustrative examples: “Please translate the following text into Spanish” or “Please summarize the following text to a maximum of 150 words” or “Please remove the content redundancies from the following text” or “Please shorten the following text by about half, without omitting essential content.” Then, the action buttons are like a control panel that can be used sensibly throughout the entire chat.