Create Shortcode in Wordpress for Toolset Types Custom Field to display Multiple Values as a RANGE

Question

I am setting up a wordpress site Toolset types custom fields which allow multiple (numeric) values. Currently the field value output in a toolset view or single post page lists all the stored values for that field, for example as: 1, 4, 6, 8 in a row. I want to to display the min-max RANGE, if any, for that field instead, ie: 1-8 (or, if only ONE stored value: 1) Toolset shortcodes dealing with the display of types custom fields with multiple values, using a wpv for_each loop (https://toolset.com/documentation/programmer-reference/views/views-shortcodes/#vf-153482), is currently limited to which which field to do the loop on, which element in the for_each loop to start or end with and the separator between elements. But no ability to (pre-) sort the elements or to display by "first" and, if more than one value, "-last" element (ie when how many elements can be entered is not constant then is not possible to use a static "end" attribute) which would, in effect provide a low to high range of values to display. But for this i need to create a new shortcode and add it but am not sure how to achieve something of this level....