GD Press Tools Pro plugin requires one of the following PHP versions: 5.6, 7.0, 7.1, 7.2, 7.3, 7.4. The plugin might work with older PHP versions, but they are no longer tested or supported.

GD Press Tools Pro plugin requires one of the following WordPress versions: 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6. The plugin might work with older WordPress versions, but they are no longer tested or supported.

GD Press Tools Pro plugin requires one of the following ClassicPress versions: 1.0, 1.1, 1.2.

GD Press Tools Pro plugin is 12 years, 4 months old.

GD Press Tools Pro plugin was first released on March 9, 2009.

GD Press Tools Pro plugin latest version 6.1.2 was released on September 11, 2020.

The detailed changelog for GD Press Tools Pro plugin is available here: GD Press Tools Pro Changelog.

Yes. POT file is provided as a base for translation in the root folder for each plugin. Translation files should go into languages directory, and WordPress must be set to your language to load the file. As an alternative, translation file can go into wp-content/languages/plugins directory.

The file name for translated and compiled MO file must be the same as POT file with the addition of language code: {plugin-name}-{language-code}.mo.

You can check out this for translating plugins using POEdit program:
support.dev4press.com/kb/article/translating-plugins-or-themes-using-poedit

Yes. Plugin must be activated as Network Wide.