Indicate "trying to add via" with a circle

[eelik]

Trying to add a via where there's difficult to find a place for it is problematic. Often I hit V while routing but there's no indication if KiCad registered the key press at all or that it's trying to add a via. Also it's almost impossible to see where it could fit. It would help if there were for example a circle outline (not the whole via, just the largest outline as thin circle which includes clearance) in the end of the current track. I believe it would be easy to implement, yet would help visually when trying to find a place for the via.

[eelik (eelik)]

Clarification: the problem exists when there's no room for a via in the place where the track is being routed. The via with clearance is visible when there's room.

Application: Pcbnew
Version: (5.1.0-1008-g945eaceb9), release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.61.1 OpenSSL/1.1.1 (WinSSL) zlib/1.2.11 brotli/1.0.6 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) nghttp2/1.34.0
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8)
    Boost: 1.68.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.61.1
    Compiler: GCC 8.2.0 with C++ ABI 1013

Build settings:
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=OFF
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[KiCad Janitor (kicad-janitor)]

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/2447