When I use scheme 2.0 I have no problem like this, but when I switch to 3.0 my setting page does not work in the intended way. I have the tooltip icon at the end of every   and beside that, I cannot change what is shown when I use the   tags. 
My code: 
  Enter your log-in name here 
  input 
  Something
https://imgur.com/a/3EYSwCt
             
            
              
              
              
            
            
                
                
              
           
          
            
            
              Tooltips should be specified in .po files
 
E.g.
 
msgctxt "SettingsTooltips::call_requests::phone_prefix_length"
msgid "Including parenthesis, spaces, etc. Use to highlight country code, area code, and phone prefix."
msgstr "Including parenthesis, spaces, etc. Use to highlight country code, area code, and phone prefix."
where
 
call_requests - addon ID
phone_prefix_length - setting ID
 
             
            
              
              
              
            
            
                
                
              
           
          
            
            
              Bt they should also be able to be specified in addon.xml as @bububeti states.  There is no requirement to use PO files.  It is a way for cs-cart to get the user community to contribute to translations.  But they're certainly not required to get full functionalty.
 
If you don't have a need for 3.0, then just use 2.0 and submit the issue with 3.0 to the bugtracker
             
            
              
              
              
            
            
                
                
              
           
          
            
            
              
Bt they should also be able to be specified in addon.xml as @bububeti states.  There is no requirement to use PO files.  It is a way for cs-cart to get the user community to contribute to translations.  But they're certainly not required to get full functionalty.
 
If you don't have a need for 3.0, then just use 2.0 and submit the issue with 3.0 to the bugtracker
 
 
No, tooltip should not be defined in scheme 3.0. Only data in .po file is required
             
            
              
              
              
            
            
                
                
              
           
          
            
            
              
No, tooltip should not be defined in scheme 3.0. Only data in .po file is required
 
 
It may have been dropped from Scheme 3.0 (but it shouldn't have).  Either way, if he wants to use the tooltip in the addon.xml then he just needs to specify Scheme 2.0 unless of course he's using some other feature of 3.0 not supported in 2.0
             
            
              
              
              
            
            
                
                
              
           
          
            
            
              
It may have been dropped from Scheme 3.0 (but it shouldn't have).  Either way, if he wants to use the tooltip in the addon.xml then he just needs to specify Scheme 2.0 unless of course he's using some other feature of 3.0 not supported in 2.0
 
 
Yes, use addon.xml for 2.0 or .po file for 3.0