Re: More axes for `ftmulti`

[Alexei Podtelezhnikov]

> 
> ```
>  ?           display this help screen
And F1 as commonly used for help
>  q, ESC      quit ftmulti
>  F1          toggle axis grouping
See above, shift by one
>  F2          toggle anti-aliasing
Might be a part of rendering mode cycle as in other demos.
>  F3          toggle outline hinting
>  F4          toggle embedded bitmaps
>  space       toggle rendering mode
> 
>  , .         previous/next font
> 
>  y           cycle through hinting engines (if available)
> 
>  Up, Down    change pointsize by 1 unit
>  PgUp, PgDn  change pointsize by 10 units
> 
>  Left, Right adjust index by 1
>  F7, F8      adjust index by 10
>  F9, F10     adjust index by 100
>  F11, F12    adjust index by 1000
Please switch to hexadecimal 16, 256, 4096 This makes it easier to dial 
charcodes, if charmaps are supported 

> 
>  a, A  adjust axis 0
>  b, B  adjust axis 1
>  ...
>  p, P  adjust axis 16
> 
>  F5, F6      adjust axis range increment
> ```
> 
>    Werner