<p>Transmission is a BitTorrent client. It is used for peer to peer filesharing over the internet. BitTorrent is a fast way of transferring files, because everyone who downloads must also upload to others. This means speeds are only limited by the number of people connected to a given torrent - the more people the better!
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<p>Download your file's associated 'torrent file' (extension .torrent). These are commonly found at <ahref="http://en.wikipedia.org/wiki/BitTorrent_tracker">'tracker' websites</a>.
<p>Once you have the torrent file, drag it into Transmission - downloading should start immediately.
<p>You can pause and resume transfers at any time, so long as the files remain in your download folder.
<p>It is good etiquette to share or 'seed' the file for a while (ie leave it uploading) once your download is complete.
<p>You can use Transmission's action menu, the individual torrent menu, as well as the Inspector to adjust download and seeding preferences on the fly.
<p>Yes, by using 'Speed Limit Mode'. Simply go to Preferences -> Bandwidth, and then set both the speed you would like Transmission to be limited to, as well as the period of time you would like the limits applied.
<p>The queue system is very simple: You start and pause transfers as usual, but if you're over the queue limit starting a transfer will instead make it "Waiting to download..."
<p>You can force a transfer to start by holding down option and clicking the orange resume button, or by using the Transfers menu item "Resume Selected Without Wait". </p>
<p>Transmission allows you to group torrents by color labels. Groups can be assigned upon adding a transfer to the list by establishing rules in Preferences -> Groups. Groups can be manually changed with Transfers -> Group and by dragging transfers to different groups in the main window (when "Use Groups" is enabled in the View menu).
<p>These groups can be used as sorting and filtering criteria. Add, remove, and modify groups in Preferences -> Groups. Groups can also be used for choosing the data location when adding transfers - this location is also set in the Groups preference window tab.
<p>Yes, either upon opening a torrent, or once it has started. When you open a multi-file torrent, a detailed Open window will appear, allowing you to select specific files.
<p>For transfers which are already running, double click them to open the Inspector, and then click the 'Files' tab. Simply check the boxes next to the files you want to download (the default is all of them).
You can even set a priority (high, normal, or low) to each file, if you want some to finish faster than others. To do so, use the selector that appears next to the checkboxes.
