Bug fix: ability to select a subsequence when building an exec block.
Bug fix: ability to select a subsequence when building an exec block.

MrChristofferson/farmbot-web-frontend,RickCarlino/farmbot-web-frontend,roryaronson/farmbot-web-frontend,roryaronson/farmbot-web-frontend,roryaronson/farmbot-web-frontend,RickCarlino/farmbot-web-frontend,FarmBot/farmbot-web-frontend,MrChristofferson/farmbot-web-frontend,FarmBot/farmbot-web-frontend