Viewing disk usage for other drives in dietpi-banner?

Is it possible to show the used space for other drives in dietpi-banner? I have an external drive connected to my Renegade that hosts the arr suite. It’s mounted inside the userdata directory.

Here’s my lsblk -a output:

NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0         7:0    0     0B  0 loop
loop1         7:1    0     0B  0 loop
loop2         7:2    0     0B  0 loop
loop3         7:3    0     0B  0 loop
loop4         7:4    0     0B  0 loop
loop5         7:5    0     0B  0 loop
loop6         7:6    0     0B  0 loop
loop7         7:7    0     0B  0 loop
sda           8:0    0   7.3T  0 disk
└─sda1        8:1    0   7.3T  0 part /mnt/dietpi_userdata/Video
mmcblk0     179:0    0 117.8G  0 disk
└─mmcblk0p1 179:1    0 117.7G  0 part /

This is not possible with the standard fields. You could try to miss use the custom field #10 to add some own code.