Being able to assign a path for the different fbclient.dll versions

[pepegaucho]

Maybe this possibility already exists. My idea is to have in the "Preferences" a list of paths for the different versions of fbclient.dll. If it isn't indicated, take the default path. For example, a grid or string like key-value with version-path: "3.0 -> c:\firebird\firebird_3_0; 4.0 -> c:\firebird\firebird_4_0". This would help when I have several versions of FB installed on the same OS