we support 1.8 xml, but we do it partially only. in 2.0, some item key syntax changed, but when importing 1.8 xml, we do not do it properly - we

• fail on simple checks
• import broken external check keys

for simple checks, we should transform them;
for external checks, we should a) add {HOST.CONN} as the first macro in the item key and replace spaces between arguments with commas