You can also get a list of all the images in the drawing by using the LISTIMAGENAMESDWG command.

1 - Yes. But you need to import the relevant fill styles into the map. See this faq entry

2 - No. The software doesn't have that feature.

3 - I don't really understand. The icons you show in the image are already in one row. But generally, you can do whatever you want with them by editing the menu files

Note that if you bough a level that don't include CC3+, you won't have a program at all, but you can use the artwork installed by the collection in other programs.

Tools menu -> Options -> Pick cursor aparture

Usually blazing fast for me. The downloads are hosted using Amazon's storage services, so there should be plenty of available capacity for the hosting server/datacenter. Testing right now, and it gives me a decent 32MB/s (= 256 Mbit/sec)