Hello,
sometimes usefull definition in TASM:

struc Key
Str db 20 dup (0)
ends

defined as

KeyChain:
Key <'Load'>
Key <'SaveAAA'>

and checked in cycle:
mov edi,offset KeyChain
mov ecx,KeyCount
u1:
call OutName,edi
add edi,20
loop u1

Result - the pre-defined "Name" is easely changeable in size of 20 bytes, and size of structure is constant, and equial 20.

In fasm, the same result:
struc Key [StrD]
{
.size dd .nEnd-.Str
.Str db StrD
.nEnd:
}

KeyChain:
k_Load Key 'Load'
k_Save Key 'SaveAAA'

Result - the size pre-defined "Name" is unexpandable (or need to reserve additional space), and size of structure is not a constant.

Sometimes the Tasm method is better. Is any way to made it in fasm?

Something like ?

Ya thanks, me brainless after 5 hours DSP programming ))