DeviceExpert REST API: GET_DEVICE doesn't match GUI

1) When I do a 'GET_DEVICE' I don't get returned all of the expected data. E.g.,:

# wget -S --no-check-certificate https://192.168.140.37:6060/api --post-data='{"API_KEY":"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","ACTION":"GET_DEVICE","IPADDRESS":"192.168.152.1"}' --header='Content-Type: application/json' -o /dev/null -O - | tr ',' '\n'
{"response":{"192.168.152.1":{"EO_SALE_DATE":"01-Apr-2012"
"CPU REVISION":"REVISION 1.0"
"FLASH SIZE":"125440K"
"DEVICE_TYPE":"Cisco IOS Router"
"CONFIGURATION REGISTER":"0X2102"
"SYSTEM_DESCRIPTION":"My Router"
"NVRAM SIZE":"239K"
"LOCATION":"City State"
"DRAM SIZE":"512000K/12288K"
"OS_TYPE":"IOS"
"STATUS":"READY"
"MODEL":"2811"
"OS_VERSION":"xx.x(x)xx"
"MAKE":"Cisco"
"EO_SUPPORT_DATE":"23-Apr-2015"
"SERIES":"2800"
"CREDENTIAL_SUPPLIED":true}}}

But when viewing Device Properties in DeviceExpert GUI, I have a value for "Column 1" which is not returned by the API, and I need this field as well. ("Column 1" shows up in the GUI for the device under Inventory->Device Details and Inventory-> Hardware Properties tabs) Is there any way to get this via the API ?

2) And a second question, is there an API to just list DeviceExpert's inventory, such as is available in the GUI?

Using Device Expert version 5.9.8.1