How I can create the extended partitions by Riff ?

[screw099]

In some products, such possibility is stated...
Is this opportunity in Riff ?
And whether Riff fix bug with the general purpose size incorrect definition ?
Thanks in advance all responded...!

Connecting to the SD/eMMC Card...OK
Set I/O Voltage reads as 1.81V, SD_CLK Frequency is 2.50 MHz

Memory Type .......................... eMMC
Manufacturer ID ...................... 0x45
OEM/Application ID ................... 0x00
Product Name ......................... "SEM08G"
Package .............................. BGA
User Area Partition Size ............. 0x0001D1000000 Bytes (7.27 GB)
Boot Partition Size .................. 0x000000200000 Bytes (2.00 MB)
RPMB Partition Size .................. 0x000000200000 Bytes (2.00 MB)
General Purpose Partition 1 Size ..... 0x010000000000 Bytes (1024.00 GB)
OCR Register ......................... 0xC0FF8080 (Dual Voltage, High Capacity)
Write Protection Bits ................ NONE
Boot Configuration ................... No Boot
Chip Revision ........................ 9.0
Multimedia Card Revision ............. 1.5 (eMMC v4.41)
Serial Number ........................ 0x0ACECA86
Memory Manufacturing Date ............ 2013