Additions in QT project (QT 4.8.6)

Past programmers used mainly following compilers: QT Creator 2.8.1 and Visual Studio 2010 C++ The application runs on OS Win10 Additions mean here that the base of following tasks are already done: 1. Two similar batch operations regarding the comparison of checkbox-values ($29) 2. Update of the data import in the graphic with only the last new time data ($8) 3. Setting: “Time Zone” seems not switched on the calculation - should be connected ($8) 4. Input function for take over a percentage part of data in the analysis ($8) 5. Function of angular distance between two kind of graphic lines ($18) 6. Input function to the comparison of up/down and angular distance in graphic lines ($14) 7. Input function for Times and Scales ($15) All: $100 Task1 Implementation of two batch operations in the two tables “Conv/Div” and “Prognosis”: Purpose: Selection of convergent (Conv) points regarding values behind checkboxes. Please see also notes of environment in attached images... Description: The operations should start from two buttons (C+, C-): C+: Unchecked checkboxes should checked one by one to see if the Conv value increases. If the Conv value raise, the checkbox remains checked, otherwise it unchecks again. C-: Marked checkboxes should de-checked one by one to see if the Conv value increases. If the Conv value raise, the checkbox remains unchecked, otherwise it marks again. This within the respective group M1, M2, M3. The function shouldn't start, if none of the group checkboxes are marked. All indications for the other tasks 2, 3, 4, 5, 6, 7 find place in images. As examples are attached the images of the first four tasks...