TYPO3 Fluid Styled Content Text Media Gallery Bootstrap Grid

MediaGallery.html

<div class="ce-column
{f:if(condition:'{gallery.count.columns}<{data.imagecols}',then:'
        col-sm-{f:cObject(typoscriptObjectPath:\'lib.math\',data:\'12/{data.imagecols}\')}
    ',else:'
        col-sm-{f:cObject(typoscriptObjectPath:\'lib.math\',data:\'12/{gallery.count.columns}\')}
    ')}
">

setup.ts

lib.math = TEXT
lib.math {
    current = 1
    prioriCalc = 1
}

TSConfig.ts

// Number of columns
TCEFORM.tt_content.imagecols.removeItems = 5,7,8

// Default: Number of columns
TCAdefaults.tt_content.imagecols = 1