Flex Gui preset buttons

I have some override preset buttons for  feed_percent_ , rapid_percent_,  spindle_percent_
I'm still doing simulation.Only on a MDI axis movement or run a program, if one of those buttons pressed, it doesn't release 
for about 5 seconds, and the DRO doesn't update for the same period. Otherwise it switches instantly. There is no plotter at the moment.

and more:
_To display 'rotation_xy_lb' (returns float), i am unable to set precision to 3 digits. Depending on calculation, it is filling the label.

_Is there something similar to bool label, but to display a .png? For spindle is on, or spindle at speed and others it would be a good alternative to text.

 

Just to check if i messed op the ui file, i made a new project, just with essential items to start. The behaviour is the same. When a running a program or mdi move, and press a button with feed_percent_, rapid_percent_ ,spindle_percent_ the display stops updating for about 5 seconds. When watching distance to go in hal, this keeps moving.

 

After the last update the formating is fine now.

But the question i have now, about gcode filter. I tried the filter, i am using with axis, but nothing happened.
Is it possible to use a filter and my setup is wrong?

And another problem:
A subroutine for probing is called at program start. To prevent problems with tool not loaded yet and others, i test for #<_task> EQ 0 and return to mainprogram, if 0
But this makes the preview disapear, also after probing is done. until abort or reset the program. only then it comes back.
Is there an alternative probe button for testing?  to load  'simulate_probe &'  doesn't work anymore

edit:
after testing a dummy filterprogram, its definetely not possible.
About the preview, i commented all probing and stuff, just left the bare nc code. When starting the program, preview disapears, on reset it returns. Program is checked in the settings


 

Thats what i got so far 

Still busy to rebuild and test, another problem occured with gcode containing umlauts. My german cam is not configurable to avoid äöü in comments. The UI crashes(in my sim) when loading a file containing umlauts in comments.