What is the meaning of this

1- content and layout:

would the office version and font map be affected by the content and layout version?

2-Unicode code range.



3-preferred rasterization techniques:

Please see Font Properties in Help. Select version 5 as that is the latest version. Calculate the Unicode Ranges.

Font Smoothing improves the font’s appearance at small sizes. OTF/TTF only, not CFF.

when using content and layout version 5 the name of the font becomes very small in the drop down word menu although I recalculated the metrics and ranges.

This tutorial gives some more insight into the metrics values and the layout version.
Font Metrics – Vertical Line Spacing