number of items displayed in TAGS (v. 1.80)

Good day!
version 1.80
How can we increase the number of items displayed in TAGS

/ producttag.aspx? tagid = nn shows only 6 items.

I tried to edit
Modules / ProductsByTag.ascx.cs

             lTitle.Text = string.Format (GetLocaleResourceString ("ProductTags.Title", Server.HtmlEncode (productTag.Name)));

             / / page size
             int totalRecords = 0;
             int pageSize = 6;
but more than 6 anyway is not displayed.

Reviewed the source code, but the decision did not find one. I need help!

Thanks in advance.