in package/src/models/Table/splitCells.js [136:143]
yGuidelines: splitGuidelines(table, guideline),
merges: splitMerges(table, guideline, splitLine),
values: splitValues(table, guideline)
})
}
const getSplitProjection = (table, p1, p2, throughout = false) => {
if (isHorizontal(p1, p2)) {