Adding columns to spreadsheet

[CarrotKutay]

Hello There!
I have been working on an implementation using your plugin. Thanks btw for this work its helping me a lot :D
I stumbled upon one issue with inserting columns to the spreadsheet

function(){var r=e.selector.range,i=r.sri,o=r.sci,a=e.rows,l=e.merges,c=e.cols,s=i;"row"===t?a.insert(i,n):"column"===t&&(a.insertColumn(o,n),s=o,c.len+=1) -> at file xspreadhsheet.js

// type: row | column
insert(type, n = 1) {
this.changeData(() => {
const { sri, sci } = this.selector.range;
const { rows, merges, cols } = this;
let si = sri;
if (type === 'row') {
rows.insert(sri, n);
} else if (type === 'column') {
rows.insertColumn(sci, n);
si = sci;
cols.len += 1; // am I seeing this correctly that no matter the number defined for inserting the actual number to insert will only ever increased by 1?
}
merges.shift(type, si, n, (ri, ci, rn, cn) => {
const cell = rows.getCell(ri, ci);
cell.merge[0] += rn;
cell.merge[1] += cn;
});
});
}

-> at file data_proxy.js

cols.len += n is probably the wanted code, or was this done on purpose? Please care to explain, thanks!