Component improvement

We need some improvements to be developed in a 3rd party component, PHPMyDataGrid: [login to view URL] We have bought the professional version (we will provide the source code for the professional version) and need the following features to be developed: * allow to add a prefix or suffix for each editable field. This prefix/suffix should be stored or not in the database - the api must provide both options. The suffix should be customizable (combobox) * use more complex formulas, for each line (each line could hold a different formula). The formulas should be: - any math operations using cell coordinates - adding all cells bellow or above, until an empty cell is found - add all cells bellow or above, except the ones that already add up, until an empty cell is found - add a comment in each cell (right-clicking). It should open up a simple HTML editor. The comments should be visible on mouse over (like the comments in an Excel worksheet). Comments must be saved in a separate table. Comments must be loaded using AJAX - allow in the API to disable AJAX saving after each change, but saving it all at once, after the save button is pressed - merge cells - for each line, we should be able to merge a specific number of columns - if the text in a cell is empty, it is impossible to edit it (bug in component) - some sums, for instance in the last column in the end don't work properly (bug in component) - define attributes per line. For instance, we may need to define that in the 3rd line of the grid, we want to 4th column to be empty, even if there's data in it. - define different formatting for each cell (not per line or per column). Formatting should allow to apply any CSS class to the cell Payment will be put in escrow and sent after the project is completed.