IOS - Autoshrink size applied across multiple labels

Question

Often I am asked about the implementation of a beautifully designed column layout (say, with 3 columns) by our UX team, which was created based on the iPhone 6 layout. Then I test the built-in design on the iPhone 5 and see that the text collides or truncates.

I would like to use the autostart capabilities of the interface designer to handle this situation on a smaller screen, but it is undesirable to reduce only one of the shortcuts. I would like the behavior to be such that if one label shrinks, they all shrink - sort of like limiting the size of an equal font size.

Does anyone have software solutions, or through the interface builder, that can impose such a restriction to make sure that if the space is insufficient and autorun starts on one label, other labels will also be reduced to the same size?

thanks