I am currently using the Squarespace system to create my website. I am using their 'Five' template and have multiple small image slider galleries for individual projects.
Unfortunately Squarespace do not have the feature to allow the image gallery sliders to open as lightboxes on clicking them.
Please also advise if you are able to speak to me via Skype as it's just easier to explain and discuss via a call.
Website URL etc will be provided once it has been established that this can be done by an individual. Experience and knowledge of the Squarespace website building platform may be useful in being able to provide the necessary solution. Squarespace themselves have been extremely unhelpful in providing assistance in this query.
I look forward to hearing from developers who feel they have the necessary skills and experience to solve this query.