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When I got a snippet with a few parameters:

<img src="http://lorempixel.com/${1:width}/${2:height}/${3:$$(yas-choose-value '("abstract" "city" "animals" "food" "people" "transport" "business" "sports" "technics"))}/${4:text}" alt="$3">

I can cycle forward pressing tab, but if I change my mind and want to modify a previous parameter the only way is leaving the cycle and go back by hand. Am I missing something or there's a key binding to go back?.

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Am I missing something or there's a key binding to go back?.

S-<tab> should be bound to yas-prev-field (in yas-keymap) which takes you back. Note that it had a bug until recently, where it always went back to the 1st field. https://github.com/joaotavora/yasnippet/issues/722

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  • Thank you!, the problem was that I had previously mapped <backtab> like this (define-key yas-minor-mode-map (kbd "<backtab>") 'yas-expand) , and it was blocking the S-<tab>
    – Fabman
    Commented Jul 27, 2016 at 19:02

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