Multiple edit

[yohanboniface]

Now that we have worked on the undo/redo feature, I think having a multi edit of features should be doable. In a first time, I'd imagine only editing the feature data properties (user properties), not the style and such, as those should be edited at the layer level when needing many features need same rendering.

Also in a first time only features of a same layer should be selectable in the same time (as for a batch edit, we still need a related object, which would be the layer in this case).

This should also allow some advanced actions, like changing the layer of all selected features, deleting them, or merging them when they are lines.

[yohanboniface]

https://zakjan.github.io/leaflet-lasso/

[IeP4nieF]

This would help very much and would safe hours of work when changing properties on maps with many objects on many layers. Especially using the leaflet-lasso-tool for multiple selection would be great!