Using eM Client 6.0.21040.0 Free on Win7 64-bit
eM Client’s email composition editor allows paste; however, the pasted text is inserted without retaining a highlight. Oddly, the default is leaving the cursor immediately before the pasted text, rather than after it. If a feature were included to insert the text with highlighting of the block of text, it would make it easier to use the right or left arrow to “decide” whether to insert the editing insertion point before or after the inserted text if one or the other end needs post-insertion editing (which is often the case if not both). Not a high priority item, but seemed worth mentioning.