Trim all at once

[김선용]

In this case, how can I trim all at once ?
Is there a command I can use ?

[JimCarruthers]

What do you want the result to be? Trim what? From what? Note that the more you try to do at once the impact on performance will go up EXPONENTIALLY.

[김선용]

I want to be like this. Like merging.

[encephalon]

use curveboolean and click inside the areas that should merge, or click outside and everything inside that shares one boarder, will merge at once.