You can adjust a channel height in LabChart Lightning by left mouse clicking and dragging on the border edge of the channel using the channel height resize icon.
To maximize a particular channel, left mouse click on the “Maximize channel height” icon that appears in the channel pane to the left of the channel in the Chart View.
Later, use the same icon to then “Restore channel heights” for that particular channel.
You can also access these options by right clicking in a channel in Chart View.
To reset channel heights for all channels, left mouse click the “Reset layout of all channels” icon at the top of the Chart View.