Display peak values on multiport_bits graphs

Hi all,
My ordinary port_bits graphs show the max (peak) values recorded, whereas the multiport_bits graphs do not, and I can’t find how to enable it. Forgive me if I do not refer to the feature with the correct name - I’m talking about the same feature that MRTG calls it WithPeak.

./validate.php

Component Version
LibreNMS 1.60
DB Schema 2020_01_09_1300_migrate_devices_attribs_table (156)
PHP 7.2.16-1+ubuntu16.04.1+deb.sury.org+1
MySQL 10.0.38-MariaDB-0ubuntu0.16.04.1
RRDTool 1.5.5
SNMP NET-SNMP 5.7.3

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[OK] Composer Version: 1.9.3
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct

Hi,

I think it needs to be coded as only the port_bits graph have it