Layers shown in viewports

[uflem]

QCAD Pro 3.23.0.0. MacBook Pro OS 10.14.5

I'm trying to learn how to work with Layouts. I created several viewports in a layout with the intent of showing different combinations of layers in each one, like blowing a portion up to show detail at a larger scale that I do not want to show at a smaller scale because the lines would be too close together. I had hoped a viewport would show exactly the layers that were visible when it was created. But that does not work: When I switch layers on or off, they are visible/not visible in every viewport containing some content of the layer. Is there a way of telling a viewport which layers should be shown in it?

[Husky]

... I had hoped a viewport would show exactly the layers that were visible when it was created. But that does not work: When I switch layers on or off, they are visible/not visible in every viewport containing some content of the layer.

Correct - a Viewport isn't a snapshot of a part of your drawing in Model_Space. It is a live view of a predetermined particular area in your Model_Space.
If you change something in Model_Space it will immediately be reflected in a Viewport.

Is there a way of telling a viewport which layers should be shown in it?

Yes and no - there is no automatic solution but a manual one ...

1. If we are talking about just one or two layer - you can turn them on/off previous a print.
2. If you have a bunch of layer which has to be adjusted for the print - use a predefined layer status (Layer States) to turn all together visible/invisible in one go.

Depending on the drawing I'm sure there are a few more options out there ...