What idioms are there to describe "doing things easily and smoothly"?

Smooth sailing [y and fān fēng shōn not n] Interpretation: The ship sailed with full sails. This metaphor went smoothly without any obstacles. Source: Xiao Wang

Call the wind and call the rain [H臻 ng Huà ny ǔ] Interpretation: used to refer to the magic of immortal Taoist priests. Now it is a metaphor, and human beings have great power to dominate nature. It can also be said that reactionary forces are rampant. Source: Xiaozhe

Satisfied [suxΡ nú y] Interpretation: I am satisfied with my words. Also known as "to the heart" and "to the heart". Source: Xiao Zhang

Success in one fell swoop [[m? dà o ché ng g ū ng]] Interpretation: describe the success at the beginning of the work. Source: Xiao Xu.

Go with the flow [[shùn Shuǐxíng zhūu] Interpretation: Go with the flow. Metaphor goes with the flow. Source: Xiao Liu

Extension: easy to understand, invincible, thriving, easy to get.