1) We've added this to the wish list.
2) This will most likely not be implemented to be honest. We get many requests to add items to the search bar. We can't add all requested fields, as this would negatively impact search bar performance. Note that you can "search" any field by running a report and filtering the report within the report results. A sample report for AD descriptions can be seen below.
SELECT tsysAssetTypes.AssetTypeIcon10 AS icon, tblAssets.AssetID, tblAssets.AssetName, tblAssets.Domain, tblAssets.IPAddress, tblAssets.Firstseen, tblAssets.Lastseen,
tblADComputers.Description
FROM tblAssets INNER JOIN
tblAssetCustom ON tblAssets.AssetID = tblAssetCustom.AssetID INNER JOIN
tsysAssetTypes ON tblAssets.Assettype = tsysAssetTypes.AssetType LEFT JOIN
tblADComputers ON tblAssets.AssetID = tblADComputers.AssetID
WHERE (tblAssetCustom.State = 1)
ORDER BY tblAssets.Domain, tblAssets.AssetName