Issues: Straight Lines can NOT be aligned for Customized Symbols

[Xio. Liang]

Difficult to align free-hand drawn electric circuit wires. The symbols provided in Shapes are far from enough. Very often you need to align the wires to a customized symbol terminals. But following basic features are just missing in DRAW.IO:

1) Minimum grip is set fixed at 1ps. No way to make smaller. 

2) No Way to align a free-hand drawn straight line with a customized symbol

3) No minimum-scale shift the objects by arrow keys. The left/right/up/down arrow keys provide the minimum-scale shifting at 1ps. 

Please help to fix the issues. Great Thanks.