tinker

to make small changes to something in order to repair or improve it ซ่อมแซม,ปะ,บัดกรี

There is a sophisticated camera system that allows users to tinker with and perfect images.

Everton FC boss David Moyes admits he is having to tinker with tactics and formations to keep his side moving onwards and upwards.

“No matter how much we move it around and tinker with it, it's not going to work,” he said.