Installing version 1.4 of Honeybee & Ladybug as a legacy version

Hi, I have Honeybee & Ladybug version 1.5 in my software and I need to use some icons from Honeybee & Ladybug version 1.4, can I install version 1.4 of Honeybee & Ladybug as a legacy version in my software and keep version 1.5 as the main version of the software? Thank you