robot modes

Alright,I know that we all start out with protoform robot modes,but how do we get actual robot modes? 

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https://www.seibertron.com/energonpub/viewtopic.php?f=16&t=15121
Indeedchrisjbrandon wrote:http://www.seibertron.com/forums/viewtopic.php?t=15010&sid=
2 threads same topic...