as needed (adverb)

1. She wore a versatile and stylish dress that could be adjusted as needed, depending on the occasion.

2. He surprised her with roses and candlelit dinner, creating a romantic atmosphere as needed to celebrate their anniversary.

3. The collapsible furniture in the small apartment allowed the residents to create different living spaces as needed, optimizing the limited square footage.

4. With endless possibilities, the protagonist of the interactive novel could make choices as needed, shaping the outcome of the story.