Dear Gretl Team,

I'm not an expert in MIDAS and because of that I am not confident translating the following lines:

2. spread (MIDAS)

Line 1: Could you explain me what is "zero last lag"? 

Line 2: Could you give me a little more context about "spread (MIDAS)"?

Another line I get myself stuck is:

3. Decoration

Could you give me more context?
Best,