@Alexey-T, you can rename some buttons.
Replace:
| first | next | prev |
by:
| 1st | → | ← |
will be too cryptic. we can rename also 'select' to 'sel'; 'count' to 'cnt'; will be too cryptic.
I believe that | ← | is much better than | prev |. I.e. prev is too cryptic, not the ←.
what do you think?
@kvichans @dinkumoil @jairo-martinez @olehl
it will look like

what do ppl think?
IMHO good
@Alexey-T Pls, show some variants. Unicode has many arrows
@kvichans
you can try all variants locally. Cud has the SnippetPanel plugin--i got arrows from it!

I know it.
I vote for

it will be like this, Im not sure...

IMO it's too bold arrows
How are you like about

'what do u think about'? this arrow from bottom? it's not nice. and why 'from bottom'

I proposal to use simple symbols < > and add a new button [...] with submenu for other commands.
Also need to add to buttons hint with full description like "Find previous - Shift+Enter" instead of only "Shift+Enter"
@OlehL interesting. will think.
beta updated!! this idea is implemented. pls test?
fixed, pls test updated beta.
It will be good append hint with full description to buttons [Replace] [Rep All] [Rep global]
It's done now; added 3 hints.
Most helpful comment
I proposal to use simple symbols < > and add a new button [...] with submenu for other commands.
Also need to add to buttons hint with full description like "Find previous - Shift+Enter" instead of only "Shift+Enter"