If you search for an asset you can click on Config > User Info > Last Logon which will list recent users who were logged in when Lansweeper scanned the Windows asset. It doesn't show the full history though.
You would need to create your own custom reporting to access the tblCPlogoninfo table for that like the below. I get 40 rows in the GUI but the SQL report gives me 1158 rows for my asset.
SELECT
lgi.LogonTime,
lgi.UserName,
lgi.IPAddress,
asset.AssetName,
cus.Model,
cus.SerialNumber
FROM tblCPlogoninfo lgi
LEFT JOIN tblAssets asset on lgi.assetid = asset.assetid
LEFT JOIN tblAssetCustom cus on lgi.AssetID = cus.AssetID
WHERE asset.AssetName = 'ComputerName'
ORDER BY LogonTime Desc