Dodgy wrote:My biggest annoyance currently in AS is that you can't multiply select layers and edit their properties as one.
You can now in version 6, in a limited way. You can shift-select multiple layers in the Layers palette. However, only a few tools can operate on those layers at once. The Translate, Scale, and Rotate Layers tools can operate on multiple selected layers.
Not all tools can do this because 1) it doesn't make sense for all tools, and 2) the multi-layer select was added late in the cycle and re-doing all the tools was not practical. In the future, we'll likely add multi-layer capability to more and more tools.
Theoretically, a tool could be written that turns on shadows, adjusts colors, etc. across multiple selected layers. This could be a good scripting opportunity if someone is interested - take a look at the Translate Layer tool to see how multiple layers are handles (including multi-layer undo).