10.12.3 Can you answer these questions?

10.12.3.1 Changing mouse over grid behavior

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=301715

How to achieve that mouse over  Grid  is always an arrow like we see on first image (when mouse is over an item of the grid) and never the the shape we see in the ... 
[output-formatting] [formatting] [grid-layouts]
 

asked by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 1

10.12.3.2 How can I have a dynamic number of InputForms that grows as I add to it?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=301674

I'm trying to write a program where it starts with one input field, and if I fill out that input field, then another input field gets added below the first one and if I fill that one out another ... 
[inputfield] [input]
                                                                                  

                                                                                  
 

asked by Xylochoron https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=45370 Score of 2

10.12.3.3 How to quickly check if compiled code calls MainEvaluate?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=301474

Consider the following test compiled code: 
... 
[syntax] [compile]
 

asked by John Taylor https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=41058 Score of 1