"This command does not support targeting layers from different files"

[atavoidturk]

"This command does not support targeting layers from different files" is extremely annoying in the web app, because the only way to combine the files is to use merge-layers, which significantly impacts performance because it creates blue lines that cannot be removed with -clean effectively forcing display of every layer at once, and for a lot of the command i use it on it is extremly unnessecary (e.g. -rename-fields, -each, -dissolve)

[mbloch]

I'd like to address both issues you raised

1. Allowing more commands to run on two or more layers from different datasets.
2. Making display of the ghosted lines optional.

Item 2 is easier than item 1, but will require adding a checkbox somewhere on the interface. One solution would be to add a dropdown menu labeled "Settings" along the top. I might also move the "Check line intersections" option from the main map window to the settings menu.

[mbloch]

The ghosted lines are now an option in the new "Display" menu.