原文如下：

Selections and mode

You can modify the properties of any element of your structure model using the either the Olex2 GUI or by issuing command-line commands. For example, you can change the currently assigned atom type by right-clicking on and atom, and selecting the ‘a(chǎn)tom type’ menu, or you can type:

>>name O

to change an atom or Q peak to an oxygen atom. Typically, some atoms must be selected before commands like this make sense. Selected objects will turn green in Olex2 and you can add more items to the selection by simply clicking on them. You can also draw a rectangle around items by pressing the left hand mouse button while holding down the SHIFT key.

In contrast to selections: when a ‘mode’ is active (‘Olex2 is in a mode’) then something will happen to the objects that are being clicked on next. You know that you are in a mode, because the mouse symbol will have changed from a pointer (arrow) to the hand symbol, and there will also be an orange box in the bottom right hand corner of Olex2, detailing which mode you are currently in.

譯文如下：

1.2.?選擇和模式

可以通過Olex2 GUI或命令行指令來(lái)修改結(jié)構(gòu)模型的任意元素的屬性。例如，你可以通過在原子上右鍵單擊并選擇“atom type”菜單來(lái)更改當(dāng)前指認(rèn)原子類型，或者你可以鍵入：

>>name O

將一個(gè)原子或Q峰更改為氧原子。通常，此類指令在起作用之前必須選擇一些原子。在Olex2中，選定的對(duì)象將會(huì)變成綠色，只需要單擊它們即可將更多項(xiàng)目添加到選擇中。你也可以通過在按住SHIFT鍵的同時(shí)按下鼠標(biāo)左鍵，在項(xiàng)目周圍繪制一個(gè)矩形類進(jìn)行選擇。

與選擇相反：當(dāng)某種“模式”處于激活狀態(tài)(“Olex2處于某種模式”)時(shí)，下一個(gè)被單擊的對(duì)象將會(huì)發(fā)生一些事情。你可以通過以下現(xiàn)象知道你處于某種模式，鼠標(biāo)指針(箭頭)更改為手形符號(hào)，并且在Olex2右下角還會(huì)有一個(gè)橙色方框，詳細(xì)說(shuō)明你當(dāng)前處于的模式。

輔助視頻：https://www.bilibili.com/video/BV16z4y1U7ru?pop_share=1