If I have a dataset with 7 fields named by letters a, b, .., g, and want to transform it to just 3 columns b, d, f, then how can it be done?

This follows up this question where I wanted a dynamic array to add and remove values. I’ve gone down the route of trying trigger and toggle with a dataset.

I have a line chart of temperature values below an overview chart. The overview charts is brushed to select what is shown in the temperature chart.

How can the title of the mark group not be repeated when using facet? I believe the axes labels are also repeated and overlayed, although less noticeable.

I have two area charts arranged vertically (adapted from this example). Brushing the bottom (overview) area zooms the top (detail) area. Another brush has been added to the top area. In this example, April-July has been brushed in the top chart.

Here’s a deneb line chart on the left and a table visual on the right in power bi. The n values are mapped to the x-axis, the m values are mapped to the y-axis. It is dummy data.

How can I show a gap instead of what seems to be the maximum value in this line chart?
The highlighted segments should be replaced with a gap as y = null for x = 4 and c = 0 (the blue line).

How can I show a gap instead of what seems to be the maximum value in this line chart?
The highlighted segments should be replaced with a gap as y = null for x = 4 and c = 0 (the blue line).

How can I show a gap instead of what seems to be the maximum value in this line chart?
The highlighted segments should be replaced with a gap as y = null for x = 4 and c = 0 (the blue line).

How can I show a gap instead of what seems to be the maximum value in this line chart?
The highlighted segments should be replaced with a gap as y = null for x = 4 and c = 0 (the blue line).